Q: Why is Yosemite so slow?

1. Back up your Mac if you have not done so already. To learn how to use Time Machine read Mac Basics: Time Machine backs up your Mac - Apple Support.
2. Uninstall Trusteer "Rapport". Your Mac cannot operate properly with it installed.

I suggest the following:

http://www.trusteer.com/support/uninstalling-rapport-mac-os-x

Don't use anything else to get rid of it.

In addition to John Galt's good advice, installation of 8 GB RAM would help your cause.

The best sources of Mac compatible RAM are OWC and Crucial.

Ciao.

When you see a beachball cursor or the slowness is especially bad, note the exact time: hour, minute, second.  

These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.

Launch the Console application in any of the following ways:

☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

☞ Open LaunchPad and start typing the name.

The title of the Console window should be All Messages. If it isn't, select

          SYSTEM LOG QUERIES ▹ All Messages

from the log list on the left. If you don't see that list, select

          View ▹ Show Log List

from the menu bar at the top of the screen.

Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.

Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.

Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.

The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.

Please don't indiscriminately dump thousands of lines from the log into this discussion.

Please don't post screenshots of log messages—post the text.

Some private information, such as your name, may appear in the log. Anonymize before posting.

1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem. But with the aid of the test results, the solution may take a few minutes, instead of hours or days.

The test works on OS X 10.7 ("Lion") and later. I don't recommend running it on older versions of OS X. It will do no harm, but it won't do much good either.

Don't be put off by the complexity of these instructions. The process is much less complicated than the description. You do harder tasks with the computer all the time.

2. If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. Backup is always a must, and when you're having any kind of trouble with the computer, you may be at higher than usual risk of losing data, whether you follow these instructions or not.

There are ways to back up a computer that isn't fully functional. Ask if you need guidance.

3. Below are instructions to run a UNIX shell script, a type of program. As I wrote above, it changes nothing. It doesn't send or receive any data on the network. All it does is to generate a human-readable report on the state of the computer. That report goes nowhere unless you choose to share it. If you prefer, you can act on it yourself without disclosing the contents to me or anyone else.

You should be wondering whether you can believe me, and whether it's safe to run a program at the behest of a stranger. In general, no, it's not safe and I don't encourage it.

In this case, however, there are a couple of ways for you to decide whether the program is safe without having to trust me. First, you can read it. Unlike an application that you download and click to run, it's transparent, so anyone with the necessary skill can verify what it does.

You may not be able to understand the script yourself. But variations of it have been posted on this website thousands of times over a period of years. The site is hosted by Apple, which does not allow it to be used to distribute harmful software. Any one of the millions of registered users could have read the script and raised the alarm if it was harmful. Then I would not be here now and you would not be reading this message. See, for example, this discussion.

Nevertheless, if you can't satisfy yourself that these instructions are safe, don't follow them. Ask for other options.

4. Here's a summary of what you need to do, if you choose to proceed:

☞ Copy a line of text in this window to the Clipboard.

☞ Paste into the window of another application.

☞ Wait for the test to run. It usually takes a few minutes.

☞ Paste the results, which will have been copied automatically, back into a reply on this page.

The sequence is: copy, paste, wait, paste again. You don't need to copy a second time. Details follow.

5. Try to test under conditions that reproduce the problem, as far as possible. For example, if the computer is sometimes, but not always, slow, run the test during a slowdown.

You may have started up in "safe" mode. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.

6. If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this section doesn’t apply. Don't log in as root.

7. The script is a single long line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, though you may not see all of it in the browser window, and you can then copy it. If you try to select the line by dragging across the part you can see, you won't get all of it.

Triple-click anywhere in the line of text below on this page to select it:

PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/libexec;clear;cd;p=(1310 ' 0.5 0.25 50 1000 15 5120 1000 25000 6 6 5 1 0 100 ' 51 25600 4 10 25 5120 102400 1000 25 1536 500 40 500 300 85 25 20480 262144 20 2000 524288 604800 5 1024 25 50 );k=({Soft,Hard}ware Memory Diagnostics Power FireWire Thunderbolt USB Bluetooth SerialATA Extensions Applications Frameworks PrefPane Fonts Displays PCI UniversalAccess InstallHistory ConfigurationProfile AirPort 'com\.apple\.' -\\t N\\/A 'AES|atr|udit|msa|dnse|ax|ensh|fami|FileS|fing|ft[pw]|gedC|kdu|etS|is\.|alk|ODSA|otp|htt|pace|pcas|ps-lp|rexe|rlo|rsh|smb|snm|teln|upd-[aw]|uuc|vix|webf' OSBundle{Require,AllowUserLoa}d 'Mb/s:Mb/s:ms/s:KiB/s:%:total:MB:total:lifetime:sampled:per sec' 'Net in:Net out:I/O wait time:I/O requests:CPU usage:Open files:Memory:Mach ports:Energy:Energy:File opens:Forks:Failed forks:System errors' 'tsA|[ST]M[HL]' PlistBuddy{,' 2>&1'}' -c Print' 'Info\.plist' CFBundleIdentifier );f=('\n%s'{': ','\n\n'}'%s\n' '\nRAM details\n%s\n' %s{' ','\n'{"${k[22]}",}}'%s\n' '%.1f GiB: %s\n' '\n    ...and %d more line(s)\n' '\nContents of %s\n    '"${k[22]}"'mod date: %s\n    '"${k[22]}"'size (B): %d\n    '"${k[22]}"'checksum: %d\n%s\n' );c=(879294308 4071182229 461455494 216630318 3627668074 1083382502 1274181950 1855907737 2758863019 1848501757 464843899 2636415542 3694147963 1233118628 2456546649 2806998573 2778718105 842973933 1383871077 1591517921 676087606 1445213025 2051385900 3301885676 891055588 998894468 695903914 1443423563 4136085286 3374894509 1051159591 892310726 1707497389 523110921 2883943871 3873345487 );s=(' s/[0-9A-Za-z._]+@[0-9A-Za-z.]+\.[0-9A-Za-z]{2,4}/EMAIL/g;/faceb/s/(at\.)[^.]+/\1NAME/g;/\/Shared/!s/(\/Users\/)[^ /]+/\1USER/g;s/[-0-9A-Fa-f]{22,}/UUID/g;' ' s/^ +//;/de: S|[nst]:/p;' ' {sub(/^ +/,"")};/er:/;/y:/&&$2<'${p[4]} ' s/:$//;3,6d;/[my].+:/d;s/^ {4}//;H;${ g;s/\n$//;/s: (E[^m]|[^EO])|x([^08]|02[^F]|8[^0])/p;} ' ' 5h;6{ H;g;/P/!p;} ' ' ($1~/^Cy/&&$3>'${p[9]}')||($1~/^Cond/&&$2!~/^N/) ' ' /:$/{ N;/:.+:/d;s/ *://;b0'$'\n'' };/^ *(V.+ [0N]|Man).+ /{ s/ 0x.... //;s/[()]//g;s/(.+: )(.+)/ (\2)/;H;};$b0'$'\n'' d;:0'$'\n'' x;s/\n\n//;/Apple[ ,]|Genesy|Intel|SMSC/d;s/\n.*//;/\)$/p;' ' s/^.*C/C/;H;${ g;/No th|pms/!p;} ' '/= [^GO]/p' '{$1=""};1' ' /Of|yc/!{ s/^.+is |\.//g;p;q;} ' ' BEGIN { FS="\f";if(system("A1 42 83 114")) d="^'"${k[21]}"'launch(d\.peruser\.[0-9]+|ctl\.(Aqua|Background|System))$";} { if($2~/[1-9]/) { $2="status: "$2;printf("'"${f[4]}"'",$1,$2);} else if(!d||$1!~d) print $1;} ' ' $1>1{$NF=$NF" x"$1} /\*/{if(!f)f="\n\t* Code injection"} {$1=""} 1;END{print f} ' ' NR==2&&$4<='${p[7]}'{print $4} ' ' BEGIN{FS=":"} ($1~"wir"&&$2>'${p[22]}') {printf("wired %.1f\n",$2/2^18)} ($1~/P.+ts/&&$2>'${p[19]}') {printf("paged %.1f\n",$2/2^18)} ' '/YLD/s/=/ /p' ' { q=$1;$1="";u=$NF;$NF="";gsub(/ +$/,"");print q"\f"$0"\f"u;} ' ' /^ {6}[^ ]/d;s/:$//;/([^ey]|[^n]e):/d;/e: Y/d;s/: Y.+//g;H;${ g;s/ \n (\n)/\1/g;s/\n +(M[^ ]+)[ -~]+/ (\1)/;s/\n$//;/( {8}[^ ].*){2,}/p;} ' 's:^:/:p;' ' !/, .+:/ { print;n++;} END{if(n<'{${p[12]},${p[13]}}')printf("^'"${k[21]}"'.+")} ' '|uniq' ' 1;END { print "/L.+/Scr.+/Templ.+\.app$";print "/L.+/Pri.+\.plugin$";if(NR<'{${p[14]},${p[21]}}') print "^/[Sp].+|'${k[21]}'";} ' ' /\.(framew|lproj)|\):/d;/plist:|:.+(Mach|scrip)/s/:.+//p;' '&&echo On' '/\.(bundle|component|framework|kext|mdimporter|plugin|qlgenerator|saver|wdgt|xpc)$/p' '/\.dylib$/p' ' /Temp|emac/{next};/(etc|Preferences|Launch[AD].+)\// { sub(".","");print $0"$";} END { split("'"${c[*]}"'",c);for(i in c) print "\t"c[i]"$";} ' ' /^\/(Ap|Dev|Inc|Prev)/d;/((iTu|ok).+dle|\.(component|mailbundle|mdimporter|plugin|qlgenerator|saver|wdgt|xpc))$/p;' ' BEGIN{ FS="= "} $2 { gsub(/[()"]/,"",$2);print $2;} !/:/&&!$2{print "'${k[23]}'"} ' ' /^\//!d;s/^.{5}//;s/ [^/]+\//: \//p;' '>&-||echo No' '{print $3"\t"$1}' 's/\'$'\t''.+//p' 's/1/On/p' '/Prox.+: [^0]/p' '$2>'${p[2]}'{$2=$2-1;print}' ' BEGIN { M1='${p[16]}';M2='${p[18]}';M3='${p[8]}';M4='${p[3]}';} !/^A/{next};/%/ { getline;if($5<M1) o["CPU"]="CPU: user "$2"%, system "$4"%";next;} $2~/^disk/&&$4>M2 { o[$2]=$2": "$3" ops/s, "$4" blocks/s";next;} $2~/^(en[0-9]|bridg)/ { if(o[$2]) { e=$3+$4+$5+$6;if(e) o[$2]=o[$2]"; errors "e"/s";next;};if($4>M3||$6>M4) o[$2]=$2": in "int($4/1024)", out "int($6/1024)" (KiB/s)";} END { for(i in o) print o[i];} ' ' /r\[0\] /&&$NF!~/^1(0|72\.(1[6-9]|2[0-9]|3[0-1])|92\.168)\./ { print $NF;exit;} ' ' !/^T/ { printf "(static)";exit;} ' '/apsd|BKAg|OpenD/!s/:.+//p' ' (/k:/&&$3!~/(255\.){3}0/)||(/v6:/&&$2!~/A/) ' ' BEGIN{FS=": "} /^ {10}O/ {exit} /^ {0,12}[^ ]/ {next} $1~"Ne"&&$2!~/^In/{print} $1~"Si" { if(a[2]) next;split($2,a," ");if(a[1]-a[4]<'${p[5]}') print;};$1~"T"&&$2<'${p[20]}'{print};$1~"Se"&&$2!~"2"{print};' ' BEGIN { FS="\f";} { n=split($3,a,".");sub(/_2[01].+/,"",$3);print $2" "$3" "a[n]$1;} ' ' BEGIN { split("'"${p[1]}"'",m);FS="\f";} $2<=m[$1]{next} $1==9||$1==10 { "ps -c -ouid -p"$4"|sed 1d"|getline $4;} $1<11 { o[$1]=o[$1]"\n    "$3" (UID "int($4)"): "$2;} $1==11&&$5!~"^/dev" { o[$1]=o[$1]"\n    "$3" (UID "$4") => "$5" (status "$6"): "$2;} $1==12&&$5 { "ps -c -ocomm -p"$5"|sed 1d"|getline n;if(n) $5=n;o[$1]=o[$1]"\n    "$5" => "$3" (UID "$4"): "$2;} $1~/1[34]/ { o[$1]=o[$1]"\n    "$3" (UID "$4", error "$5"): "$2;} END { n=split("'"${k[27]}"'",u,":");for(i=n+1;i<n+4;i++)u[i]=u[n];split("'"${k[28]}"'",l,":");for(i=1;i<15;i++) if(o[i])print "\n"l[i]" ("u[i]")\n"o[i];} ' ' /^ {8}[^ ]/{print} ' ' BEGIN { L='${p[17]}';} !/^[[:space:]]*(#.*)?$/ { l++;if(l<=L) f=f"\n    "$0;} END { F=FILENAME;if(!F) exit;if(!f) f="\n    [N/A]";"cksum "F|getline C;split(C, A);C=A[1];"stat -f%Sm "F|getline D;"stat -f%z "F|getline S;"file -b "F|getline T;if(T~/^Apple b/) { f="";l=0;while("'"${k[30]}"' "F|getline g) { l++;if(l<=L) f=f"\n    "g;};};if(T!~/^(AS.+ (En.+ )?text(, with v.+)?$|(Bo|PO).+ sh.+ text ex|XM)/) F=F"\n    '"${k[22]}"'"T;printf("'"${f[8]}"'",F,D,S,C,f);if(l>L) printf("'"${f[7]}"'",l-L);} ' ' s/^ ?n...://p;s/^ ?p...:/-'$'\t''/p;' 's/0/Off/p' 's/^.{52}(.+) <.+/\1/p' ' /id: N|te: Y/{i++} END{print i} ' ' /kext:/ { split($0,a,":");p=a[1];k[S]='${k[25]}';k[U]='${k[26]}';v[S]="Safe";v[U]="true";for(i in k) { s=system("'"${k[30]}"'\\ :"k[i]" \""p"\"/*/I*|grep -qw "v[i]);if(!s) a[1]=a[1]" "i;};if(!a[2]) a[2]="'"${k[23]}"'";printf("'"${f[4]}"'",a[1],a[2]);next;} !/^ *$/ { p="'"${k[31]}"'\\ :'"${k[33]}"' \""$0"\"/*/'${k[32]}'";p|getline b;close(p);if(b~/ .+:/||!b) b="'"${k[23]}"'";printf("'"${f[4]}"'",$0,b);} ' '/ en/!s/\.//p' ' NR>=13 { gsub(/[^0-9]/,"",$1);print;} ' ' $10~/\(L/&&$9!~"localhost" { sub(/.+:/,"",$9);print $1": "$9|"sort|uniq";} ' '/^ +r/s/.+"(.+)".+/\1/p' 's/(.+\.wdgt)\/(Contents\/)?'${k[32]}'$/\1/p' 's/^.+\/(.+)\.wdgt$/\1/p' ' /l: /{ /DVD/d;s/.+: //;b0'$'\n'' };/s: /{ / [VY]/d;s/^ */- /;H;};$b0'$'\n'' d;:0'$'\n'' x;/APPLE [^:]+$/d;p;' '/^find: /!p;' ' /^p/{ s/.//g;x;s/\nu/'$'\f''/;s/(\n)c/\1'$'\f''/;s/\n\n//;p;};H;' ' BEGIN{FS="= "} /Path/{print $2} ' ' /^ *$/d;s/^ */    /;p;' ' s/^.+ |\(.+\)$//g;p;' '1;END{if(NR<'${p[15]}')printf("^/(S|usr/(X|li))")}' ' /2/{print "WARN"};/4/{print "CRITICAL"};' ' /EVHF|MACR|^s/d;s/^.+: //p;' ' $3~/^[1-9][0-9]{0,2}(\.[1-9][0-9]{0,2}){2}$/ { i++;n=n"\n"$1"\t"$3;} END{ if(i>1)print n} ' s/{'\.|jnl: ','P.+:'}'//;s/ +([0-9]+)(.+)/\2'$'\t\t''\1/p' ' /es: ./{ /iOS/d;s/^.+://;b0'$'\n'' };/^ +C.+ted: +[NY]/H;/:$/b0'$'\n'' d;:0'$'\n'' x;/: +N/d;s/://;s/\n.+//p;' ' 1d;/:$/b0'$'\n'' $b0'$'\n'' /(D|^ *Loc.+): /{ s/^.+: //;H;};/(B2|[my]): /H;d;:0'$'\n'' x;/[my]: [AM]|m: I.+p$|^\/Vo/d;s/(^|\n) [ -~]+//g;s/(.+)\n(.+)/\2:\1/;s/\n//g;/[ -~]/p;' 's/$/'$'\f''(0|-(4[34])?)$/p' '|sort'{'|uniq'{,\ -c},\ -nr} ' s/^/'{5,6,7,8,9,10}$'\f''/;s/ *'$'\f'' */'$'\f''/g;p;' 's/:.+$//p' '|wc -l' /{\\.{kext,xpc,'(appex|pluginkit)'}'\/(Contents\/)?'Info,'Launch[AD].+'}'\.plist$/p' 's/([-+.?])/\\\1/g;p' 's/, /\'$'\n/g;p' ' BEGIN{FS="\f"} { printf("'"${f[6]}"'",$1/2^30,$2);} ' ' /= D/&&$1!~/'{${k[24]},${k[29]}}'/ { getline d;if(d~"t") print $1;} ' ' BEGIN{FS="\t"} NR>1&&$NF!~/0x|\.([0-9]{3,}|[-0-9A-F]{36})$/ { print $NF"\f"a[split($(NF-1),a," ")];} ' '|tail -n'{${p[6]},${p[10]}} ' s/.+bus /Bus: /;s/,.+[(]/ /;s/,.+//p;' ' { $NF=$NF" Errors: "$1;$1="";} 1 ' ' 1s/^/\'$'\n''/;/^ +(([MNPRSV]|De|Li|Tu).+|Bus): .|d: Y/d;s/:$//;$d;p;' ' BEGIN { RS=",";FS=":";} $1~"name" { gsub(/["\\]/,"",$2);print $2;} ' '|grep -q e:/' '/[^ .]/p' '{ print $1}' ' /^ +N.+: [1-9]/ { i++;} END { if(i) print "system: "i;} ' ' NF { print "'{admin,user}' "$NF;exit;} ' ' /se.+ =/,/[\}]/!d;/[=\}]/!p ' ' 3,4d;/^ +D|Of|Fu| [0B]/d;s/^  |:$//g;$!H;${ x;/:/p;} ' ' BEGIN { FS=": ";} NR==1 { sub(":","");h="\n"$1"\n";} /:$/ { l=$1;next;} $1~"S"&&$2!~3 { getline;next;} /^ {6}I/ { i++;L[i]=l" "$2;} END { if(i) print h;for(j=0;j<'${p[24]}';j++) print L[i-j];} ' ' /./H;${ x;s/\n//;s/\n/, /g;/,/p;} ' ' {if(int($6)>'${p[25]}')printf("swap used %.1f\n",$6/1024)} ' ' BEGIN{FS="\""} $3~/ t/&&$2!~/'{${k[24]},${k[29]}}'/{print $2} ' ' int($1)>13 ' p ' BEGIN{FS="DB="} { sub(/\.db.*/,".db",$2);print $2;} ' {,1d\;}'/r%/,/^$/p' ' NR==1{next} NR>11||!$0{exit} {print $NF"\f"substr($0,1,32)"\f"$(NF-7)} ' '/e:/{print $2}' ' /^[(]/{ s/....//;s/$/:/;N;/: [)]$/d;s/\n.+ ([^ ]+).$/\1/;H;};${ g;p;} ' '1;END { exit "find /var/db/r*/'${k[21]}'*.{BS,Bas,Es,J,OSXU,Rem,up}*.bom -mtime -'${p[23]}'s"|getline;} ' ' NR<='${p[26]}' { o=o"\n"$0;next;} { o="";exit;} END{print o|"sed 1d"} ' ' {o=o"\n"$0} NR==6{p=$1*$5} END{if(p>'${p[27]}'*10^6)print o|"sed 1d"} ' );c1=(system_profiler pmset\ -g nvram fdesetup find syslog df vm_stat sar ps crontab kextfind top pkgutil "${k[30]}\\" echo cksum kextstat launchctl smcDiagnose sysctl\ -n defaults\ read stat lsbom 'mdfind -onlyin' env pluginkit scutil 'dtrace -q -x aggsortrev -n' security sed\ -En awk 'dscl . -read' networksetup mdutil lsof test osascript\ -e netstat mdls route cat uname powermetrics codesign lockstat lpstat );c2=(${k[21]}loginwindow\ LoginHook ' /L*/P*/loginw*' "'tell app \"System Events\" to get properties of login items'" 'L*/Ca*/'${k[21]}'Saf*/E* -d 2 -name '${k[32]} '~ $TMPDIR.. \( -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 \)' -i '-nl -print' '-F \$Sender -k Level Nle 3 -k Facility Req "'${k[21]}'('{'bird|.*i?clou','lsu|sha'}')"' "-f'%N: %l' Desktop {/,}L*/Keyc*" therm sysload boot-args status " -F '\$Time \$Message' -k Sender kernel -k Message CRne '0xdc008012|(allow|call)ing|Goog|(mplet|nabl)ed|ry HD|safe b|succ|xpm' -k Message CReq 'bad |Can.t l|corru|dead|fail|GPU |hfs: Ru|inval|Limiti|v_c|NVDA[(]|pa(gin|us)|Purg(ed|in)| err|Refus|s ful|TCON|tim(ed? ?|ing )o|trig|WARN' " '-du -n DEV -n EDEV 1 10' 'acrx -o%cpu,comm,ruid' "' syscall::recvfrom:return {@a[execname,uid]=sum(arg0)} syscall::sendto:return {@b[execname,uid]=sum(arg0)} syscall::open*:entry {@c[execname,uid,copyinstr(arg0),errno]=count()} syscall::execve:return, syscall::posix_spawn:return {@d[execname,uid,ppid]=count()} syscall::fork:return, syscall::vfork:return, syscall::posix_spawn:return /arg0<0/ {@e[execname,uid,arg0]=count()} syscall:::return /errno!=0/ {@f[execname,uid,errno]=count()} io:::wait-start {self->t=timestamp} io:::wait-done /self->t/ { this->T=timestamp - self->t;@g[execname,uid]=sum(this->T);self->t=0;} io:::start {@h[execname,uid]=sum(args[0]->b_bcount)} tick-10sec { normalize(@a,2560000);normalize(@b,2560000);normalize(@c,10);normalize(@d,10);normalize(@e,10);normalize(@f,10);normalize(@g,10000000);normalize(@h,10240);printa(\"1\f%@d\f%s\f%d\n\",@a);printa(\"2\f%@d\f%s\f%d\n\",@b);printa(\"11\f%@d\f%s\f%d\f%s\f%d\n\",@c);printa(\"12\f%@d\f%s\f%d\f%d\n\",@d);printa(\"13\f%@d\f%s\f%d\f%d\n\",@e);printa(\"14\f%@d\f%s\f%d\f%d\n\",@f);printa(\"3\f%@d\f%s\f%d\n\",@g);printa(\"4\f%@d\f%s\f%d\n\",@h);exit(0);} '" '-f -pfc /var/db/r*/'${k[21]}'*.{BS,Bas,Es,J,OSXU,Rem,up}*.bom' '{/,}L*/Lo*/Diag* -type f -regex .\*[cght] ! -name .?\* ! -name \*ag \( -exec grep -lq "^Thread c" {} \; -exec printf \* \; -o -true \) -execdir stat -f'$'\f''%Sc'$'\f''%N -t%F {} \;' '/S*/*/Ca*/*xpc*' '-L /{S*/,}L*/StartupItems -type f -exec file {} +' /\ kMDItemContentTypeTree=${k[21]}{bundle,mach-o-dylib} :Label "/p*/e*/{auto*,{cron,fs}tab,hosts,{[lp],sy}*.conf,mach_i*/*,pam.d/*,ssh{,d}_config,*.local} {/p*,/usr/local}/e*/periodic/*/* /L*/P*{,/*}/com.a*.{Bo,sec*.ap}*t {/S*/,/,}L*/Lau*/*{,/*} .launchd.conf" list '-F "" -k Sender hidd -k Level Nle 3' /Library/Preferences/${k[21]}alf\ globalstate --proxy '-n get default' vm.swapusage --dns -get{dnsservers,info} dump-trust-settings\ {-s,-d,} '~ "kMDItemKind=Package"' '-R -ce -l1 -n5 -o'{'prt -stats prt','mem -stats mem'}',command,uid' -kl -l -s\ / '--regexp --files '${k[21]}'pkg.*' '+c0 -i4TCP:0-1023' ${k[21]}dashboard\ layer-gadgets '-d /L*/Mana*/$USER' '-app Safari WebKitDNSPrefetchingEnabled' '-Fcu +c0 -l' -m 'L*/{Con*/*/Data/L*/,}Pref* -type f -size 0c -name *.plist.???????' kern.memorystatus_vm_pressure_level '3>&1 >&- 2>&3' '-F \$Message -k Sender kernel -k Message CReq "'{'n Cause: -','(a und|I/O |gnment |jnl_io.+)err|disk.+abo','USBF:.+bus'}'"' -name\ kMDItem${k[33]} -T\ hfs '-n get default' -listnetworkserviceorder :${k[33]} :CFBundleDisplayName $EUID {'$TMPDIR../C ','/{S*/,}'}'L*/{,Co*/*/*/L*/}{Cache,Log}s -type f -size +'${p[11]}'M -exec stat -f%z'$'\f''%N {} \;' \ /v*/d*/*/*l*d{,.*.$UID}/* '-app Safari UserStyleSheetEnabled' 'L*/A*/Fi*/P*/*/a*.json' users/$USER\ HomeDirectory '{/,}L*/{Con,Pref}* -type f ! -size 0 -name *.plist -exec plutil -s {} \;' ' -F "\$Time \$(Sender): \$Message" -k Sender Rne "launchd|nsurls" -k Level Nle 3 -k Facility R'{'ne "user|','eq "'}'console" -k Message CRne "[{}<>]|asser|commit - no t|deprec|done |ect pas|fmfd|Goog|ksho|ndum|obso|realp|rned f|/root|sandbox ex" ' getenv '/ "kMDItemDateAdded>=\$time.now(-'${p[23]}')&&kMDItem'${k[33]}'=*"' -m\ / '' ' -F "\$Time \$(RefProc): \$Message" -k Sender Req launchd -k Level Nle 3 -k Message Rne "asse|bug|File ex|hij|Ig|Jet|key is|lid t|Plea|ship" ' print{,-disabled}\ {system,{gui,user}/$UID} '-n1 --show-initial-usage --show-process-energy' -r ' -F "\$Message" -k Sender nsurlstoraged -k Time ge -1h -k Level Nle 4 -k Message Req "^(ER|IN)" ' '/A* -type d -name *.app -prune ! -user 0' -vv '-D1 -IPRWck -s5 sleep 1' -o );N1=${#c2[@]};for j in {0..20};do c2[N1+j]=SP${k[j]}DataType;done;l=({Restricted\ ,Lock,Pro}files POST Battery {Safari,App,{Bad,Loaded}\ kernel,Firefox}\ extensions System\ load boot\ args FileVault\ {2,1} {Kernel,System,Console,launchd}\ log SMC Login\ hook 'I/O per process' 'High file counts' UID {System,Login,Agent,User}\ services\ {load,disabl}ed {Admin,Root}\ access Font\ issues Firewall Proxies DNS TCP/IP Wi-Fi 'Elapsed time (sec)' {Root,User}\ crontab {Global,User}' login items' Spotlight Memory\ pressure Listeners Widgets Parental\ Controls Prefetching Nets Volumes {Continuity,I/O,iCloud,HID,HCI}\ errors {User,System}\ caches/logs XPC\ cache Startup\ items Shutdown\ codes Heat Diagnostic\ reports Bad\ {plist,cache}s 'VM (GiB)' Bundles{,' (new)'} Trust\ settings Activity Free\ space Stylesheet Library\ paths{,' ('{shell,launchd}\)} Data\ packages Modifications CUPS );N3=${#l[@]};for i in {0..8};do l[N3+i]=${k[5+i]};done;F() { local x="${s[$1]}";[[ "$x" =~ ^([\&\|\<\>]|$) ]]&&{ printf "$x";return;};:|${c1[30]} "$x" 2>&-;printf "%s \'%s\'" "|${c1[30+$?]}" "$x";};A0() { Q=6;v[2]=1;id -G|grep -qw 80;v[1]=$?;((v[1]))||{ Q=7;sudo -v;v[2]=$?;((v[2]))||Q=8;};v[3]=`date +%s`;date '+Start time: %T %D%n';printf '\n[Process started]\n\n'>&4;printf 'Revision: %s\n\n' ${p[0]};};A1() { local c="${c1[$1]} ${c2[$2]}";shift 2;c="$c ` while [[ "$1" ]];do F $1;shift;done`";((P2))&&{ c="sudo $c";P2=;};v=`eval "$c"`;[[ "$v" ]];};A2() { local c="${c1[$1]}";[[ "$c" =~ ^(awk|sed ) ]]&&c="$c '${s[$2]}'"||c="$c ${c2[$2]}";shift 2;local d=` while [[ "$1" ]];do F $1;shift;done`;((P2))&&{ c="sudo $c";P2=;};local a;v=` while read a;do eval "$c '$a' $d";done<<<"$v";`;[[ "$v" ]];};A3(){ v=$((`date +%s`-v[3]));};export -f A1 A2 F;B1() { v=No;! ((v[1]))&&{ v=;P1=1;};};eval "`type -a B1|sed '1d;s/1/2/'`";B3(){ v[$1]="$v";};B4() { local i=$1;local j=$2;shift 2;local c="cat` while [[ "$1" ]];do F $1;shift;done`";v[j]=`eval "{ $c;}"<<<"${v[i]}"`;};B5(){ v="${v[$1]}"$'\n'"${v[$2]}";};B6() { v=` paste -d$'\e' <(printf "${v[$1]}") <(printf "${v[$2]}")|awk -F$'\e' ' {printf("'"${f[$3]}"'",$1,$2)} ' `;};B7(){ v=`egrep -v "${v[$1]}"<<<"$v"|sort`;};eval "`type -a B7|sed '1d;s/7/8/;s/-v //'`";C0() { [[ "$v" ]]&&sed -E "$s"<<<"$v";};C1() { [[ "$v" ]]&&printf "${f[$1]}" "${l[$2]}" "$v"|sed -E "$s";};C2() { v=`echo $v`;[[ "$v" != 0 ]]&&C1 0 $1;};C3() { B4 0 0 63&&C1 1 $1;};C4() { echo $'\t'"Part $((++P)) of $Q done at $((`date +%s`-v[3])) sec">&4;};C5() { sudo -k;pbcopy<<<"$o";printf '\n\tThe test results are on the Clipboard.\n\n\tPlease close this window.\n';exit 2>&-;};for i in 1 2;do eval D$((i-1))'() { A'$i' $@;C0;};';for j in 2 3;do eval D$((i+2*j-3))'() { local x=$1;shift;A'$i' $@;C'$j' $x;};';done;done;trap C5 2;o=$({ A0;D0 0 N1+1 2;D0 0 $N1 1;B1;C2 31;B1&&! B2&&C2 32;D2 22 15 63;D0 0 N1+2 3;D0 0 N1+15 17;D4 3 0 N1+3 4;D4 4 0 N1+4 5;D4 N3+4 0 N1+9 59;D0 0 N1+16 99;for i in 0 1 2;do D4 N3+i 0 N1+5+i 6;done;D4 N3+3 0 N1+8 71;D4 62 1 10 7;D4 10 1 11 8;B2&&D4 18 19 53 67;D2 11 2 12 9;D2 12 3 13 10;D2 13 32 70 101 25;D2 71 6 76 13;D2 45 20 52 66;A1 7 77 14;B3 28;A1 20 31 111;B6 0 28 5;B4 0 0 110;C2 66;B2&&D0 45 90 124;D4 70 8 15 38;D0 9 16 16 77 45;C4;B2&&D0 35 49 61 75 76 78 45;B2&&{ D0 28 17 45;C4;};B2&&{ A1 43 85 117;B3 29;B4 0 0 119 76 81 45;C0;B4 29 0 118 119 76 82 45;C0;    };D0 12 40 54 16 79 45;D0 12 39 54 16 80 45;D4 78 46 91;D4 74 25 77 15&&{ B4 0 8 103;B4 8 0;A2 18 74;B6 8 0 3;C3 75;};B2&&D4 19 21 0;B2&&D4 40 10 42;D2 2 0 N1+19 46 84;D2 44 34 43 53;D2 59 22 20 32;D2 33 0 N1+14 51;for i in {0..2};do A1 29 35+i 104+i;B3 25+i;done;B6 25 27 5;B6 0 26 5;B4 0 0 110;C2 69;D2 34 21 28 35;D4 35 27 29 36;A1 40 59 120;B3 18;A1 33 60 121;B8 18;B4 0 19 83;A1 27 32 39&&{ B3 20;B4 19 0;A2 33 33 40;B3 21;B6 20 21 3;};C2 36;D4 50 38 5 68;B4 19 0;D5 37 33 34 42;B2&&D4 46 35 45 55;D4 38 0 N1+20 43;B2&&D4 58 4 65 76 91;D4 63 4 19 44 75 95 12;B1&&{ D4 53 5 55 75 69&&D4 51 6 58 31;D4 56 5 56 97 75 98&&D0 0 N1+7 99;D2 55 5 27 84;D4 61 5 54 75 70;D4 14 5 14 96;D4 15 5 72 96;D4 17 5 78 96;C4;};D4 16 5 73 96;A1 13 44 74 18;C4;B3 4;B4 4 0 85;A2 14 61 89;B4 0 5 19 102;A1 17 41 50;B7 5;C3 8;B4 4 0 88;A2 14 24 89;C4;B4 0 6 19 102;B4 4 0 86;A2 14 61 89;B4 0 7 19 102;B5 6 7;B4 0 11 73 102;A1 42 86 114;j=$?;for i in 0 1 2;do ((i==2&&j==1))&&break;((! j))||((i))||B2&&A1 18 $((79+i-(i+53)*j)) 107+8*j 94 74||continue;B7 11;B4 0 0 11;C3 $((23+i*(1+i+2*j)));D4 $((24+i*(1+i+2*j))) 18-4*j 82+i-16*j $((112+((3-i)*i-40*j)/2));done;D4 60 4 21 24;D4 42 14 1 62;D4 43 37 2 90 48;D4 41 10 42;D2 48 36 47 25;A1 4 3 60&&{ B3 9;A2 14 61;B4 0 10 21;B4 9 0;A2 14 62;B4 0 0 21;B6 0 10 4;C3 5;};D4 9 41 69 100;D2 72 21 68 35;D2 49 21 48 49;B4 4 22 57 102;A1 21 46 56 74;B7 22;B4 0 0 58;C3 47;D4 54 5 7 75 76 69;D4 52 5 8 75 76 69;D4 57 4 64 76 91;D2 0 4 4 84;D2 1 4 51 84;D4 21 22 9 37;D0 0 N1+17 108;D4 76 24 38;A1 23 18 28 89;B4 0 16 22 102;A1 16 25 33;B7 16;B4 0 0 34;D1 31 47;D4 64 4 71 41;D4 65 5 87 116 74;C4;B4 4 12 26 89 23 102;for i in {0..3};do A1 0 N1+10+i 72 74;B7 12;B4 0 0 52;C3 N3+5+i;((i))||C4;done;A1 24 22 29;B7 12;B3 14;A2 39 57 30;B6 14 0 4;C3 67;A1 24 75 74;B4 1 1 122||B7 12;B4 0 0 123;B3 23;A2 39 57 30;B6 23 0 4;C3 68;B4 4 13 27 89 65;A1 24 23;B7 13;C3 73;B4 4 0 87;A2 14 61 89 20;B4 0 17;A1 26 50 64;B7 17;C3 6;A1 4 88;D5 77 44 89;D4 7 11 6;D0 0 N1+18 109;A3;C2 39;C4;} 4>&2 2>/dev/null;);C5

Copy the selected text to the Clipboard by pressing the key combination command-C.

8. Launch the built-in Terminal application in any of the following ways:

☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

☞ Open LaunchPad and start typing the name.

Click anywhere in the Terminal window and paste by pressing command-V. The text you pasted should vanish immediately. If it doesn't, press the return key.

9. If you see an error message in the Terminal window such as "Syntax error" or "Event not found," enter

exec bash

and press return. Then paste the script again.

10. If you're logged in as an administrator, you'll be prompted for your login password. Nothing will be displayed when you type it. You will not see the usual dots in place of typed characters. Make sure caps lock is off. Type carefully and then press return. You may get a one-time warning to be careful. If you make three failed attempts to enter the password, the test will run anyway, but it will produce less information. If you don't know the password, or if you prefer not to enter it, just press return three times at the password prompt. Again, the script will still run.

If you're not logged in as an administrator, you won't be prompted for a password. The test will still run. It just won't do anything that requires administrator privileges.

11. The test may take a few minutes to run, depending on how many files you have and the speed of the computer. A computer that's abnormally slow may take longer to run the test. While it's running, a series of lines will appear in the Terminal window like this:

[Process started]

        Part 1 of 8 done at … sec
        …
        Part 8 of 8 done at … sec

        The test results are on the Clipboard.

        Please close this window.

[Process completed]

The intervals between parts won't be exactly equal, but they give a rough indication of progress. The total number of parts may be different from what's shown here.

Wait for the final message "Process completed" to appear. If you don't see it within about ten minutes, the test probably won't complete in a reasonable time. In that case, press the key combination control-C or command-period to stop it and go to the next step. You'll have incomplete results, but still something.

12. When the test is complete, or if you stopped it because it was taking too long, quit Terminal. The results will have been copied to the Clipboard automatically. They are not shown in the Terminal window. Please don't copy anything from there. All you have to do is start a reply to this comment and then paste by pressing command-V again.

At the top of the results, there will be a line that begins with the words "Start time." If you don't see that, but instead see a mass of gibberish, you didn't wait for the "Process completed" message to appear in the Terminal window. Please wait for it and try again.

If any private information, such as your name or email address, appears in the results, anonymize it before posting. Usually that won't be necessary.

13. When you post the results, you might see an error message on the web page: "You have included content in your post that is not permitted," or "You are not authorized to post." That's a bug in the forum software. Please post the test results on Pastebin, then post a link here to the page you created.

14. This is a public forum, and others may give you advice based on the results of the test. They speak for themselves, not for me. The test itself is harmless, but whatever else you're told to do may not be. For others who choose to run it, I don't recommend that you post the test results on this website unless I asked you to.

______________________________________________________________

Copyright © 2014, 2015 by Linc Davis. As the sole author of this work, I reserve all rights to it except as provided in the Use Agreement for the Apple Support Communities website ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

A

The startup drive may be failing, or there is some other internal hardware fault.

Back up all data on the drive immediately if you don't already have a current backup. There are ways to back up a computer that isn't fully functional—ask if you need guidance.

Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.

Keeping your confidential data secure during hardware repair

Apple also recommends that you deauthorize a device in the iTunes Store before having it serviced.

*An SSD doesn't need to be zeroed.

The test results show other issues. I suggest you defer the remaining steps until after the hardware fault has been corrected or ruled out.

B

A program, or perhaps more than one, is at times using excessive memory, causing the whole system to be temporarily unresponsive. That can happen for two reasons:

          A long-running process with a memory leak (a kind of bug)

          Not enough memory for your usage pattern

Please note that if the cause is a memory leak, installing more memory will not help. That's likely if you already have more than 4 GB of memory. Tracking down a memory leak can be difficult, and it may come down to a process of elimination.

When you notice the unresponsiveness, open the Activity Monitor application and select All Processes from the View menu, if it's not already selected. Select the Memory tab.

If the graph at the bottom of the window is in the yellow or red zone, click the heading of the Real Mem column in the process table twice to sort the table with the highest value at the top. If you don't see that column, select

          View ▹ Columns ▹ Real Memory

from the menu bar.

If one process (excluding "kernel_task") is using much more memory than all the others, or if kernel_task is using more than about 1.5 GB, that could be an indication of a leak. A better indication would be a process that continually grabs more and more real memory over time without ever releasing it. Here is an example of how it's done.

The processes named "Safari Web Content" render web pages for Safari. They use a lot of memory and may leak if certain Safari extensions or third-party web plugins are installed. Consider them prime suspects.

Another process often implicated in memory leaks is "inkjet4" or "inkjet8," which is a component of the HP printing software. If it's present, force-quit the process in Activity Monitor to solve the problem temporarily. Empty the print queues in the Printers & Scanners preference pane (which has a slightly different name in each recent version of OS X.) If you don't use an HP printer, remove the software. Otherwise, if the problem is recurrent, update the software (which may not help) or contact HP support.

"Wired" memory should be a small part of the total. That memory is not swapped, but it makes less physical memory available which may then result in swapping. If you have a lot of wired memory, that's usually an indication of a memory leak in a third-party program that modifies the operating system at a low level. Ask for guidance in that case.

If you don't have an obvious memory leak, your options are to install more memory (if possible) or to run fewer programs simultaneously.

The next suggestion is only for users familiar with the shell. For a more precise, but potentially misleading, test, run the following command:

sudo leaks -nocontext -nostacks process | grep total

where process is the name of a process you suspect of leaking memory. Almost every process will leak some memory; the question is how much, and especially how much the leak increases with time. I can’t be more specific. See the leaks(1) man page and the Apple developer documentation for details.

C

Remove "Xbox360Controller" and see whether there's an improvement.

Any third-party software that doesn't install by drag-and-drop into the Applications folder, and uninstall by drag-and-drop to the Trash, is a system modification.

Whenever you remove system modifications, they must be removed completely, and the only way to do that is to use the uninstallation tool, if any, provided by the developers, or to follow their instructions. If the software has been incompletely removed, you may have to re-download or even reinstall it in order to finish the job.

I never install system modifications myself, and except as stated in this comment, I don't know how to uninstall them. You'll have to do your own research to find that information.

Here are some general guidelines to get you started. Suppose you want to remove something called “BrickMyMac” (a hypothetical example.) First, consult the product's Help menu, if there is one, for instructions. Finding none there, look on the developer's website, say www.brickmymac.com. (That may not be the actual name of the site; if necessary, search the Web for the product name.) If you don’t find anything on the website or in your search, contact the developer. While you're waiting for a response, download BrickMyMac.dmg and open it. There may be an application in there such as “Uninstall BrickMyMac.” If not, open “BrickMyMac.pkg” and look for an Uninstall button. The uninstaller might also be accessed by clicking the Customize button, if there is one.

Back up all data before making any changes.

You will generally have to restart the computer in order to complete an uninstallation. Until you do that, there may be no effect, or unpredictable effects.

If you can’t remove software in any other way, you’ll have to erase and install OS X. Never install any third-party software unless you're sure you know how to uninstall it; otherwise you may create problems that are very hard to solve.

Trying to remove complex system modifications by hunting for files by name often will not work and may make the problem worse. The same goes for "utilities" such as "AppCleaner" and the like that purport to remove software.

D

Some of your user files (not system files) have incorrect permissions or are locked. This procedure will unlock those files and reset their ownership, permissions, and access controls to the default. If you've intentionally set special values for those attributes, they will be reverted. In that case, either stop here, or be prepared to recreate the settings if necessary. Do so only after verifying that those settings didn't cause the problem. If none of this is meaningful to you, you don't need to worry about it, but you do need to follow the instructions below.

Back up all data before proceeding.

Step 1

If you have more than one user, and the one in question is not an administrator, then go to Step 2.

Enter the following command in the Terminal window in the same way as before (triple-click, copy, and paste):

sudo find ~ $TMPDIR.. -exec chflags -h nouchg,nouappnd,noschg,nosappnd {} + -exec chown -h $UID {} + -exec chmod +rw {} + -exec chmod -h -N {} + -type d -exec chmod -h +x {} + 2>&-

You'll be prompted for your login password, which won't be displayed when you type it. Type carefully and then press return. You may get a one-time warning to be careful. If you don’t have a login password, you’ll need to set one before you can run the command. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator.

The command may take several minutes to run, depending on how many files you have. Wait for a new line ending in a dollar sign ($) to appear, then quit Terminal.

Step 2 (optional)

Take this step only if you have trouble with Step 1, if you prefer not to take it, or if it doesn't solve the problem.

Start up in Recovery mode. When the OS X Utilities screen appears, select

          Utilities ▹ Terminal

from the menu bar. A Terminal window will open. In that window, type this:

resetp

Press the tab key. The partial command you typed will automatically be completed to this:

resetpassword

Press return. A Reset Password window will open. You’re not going to reset a password.

Select your startup volume ("Macintosh HD," unless you gave it a different name) if not already selected.

Select your username from the menu labeled Select the user account if not already selected.

Under Reset Home Directory Permissions and ACLs, click the Reset button.

Select

           ▹ Restart

from the menu bar.

E

Back up all data.

Run the following command in the same way as before. It moves to the Trash "semaphore" files that have not been cleaned up by the system and may be interfering with normal operation. The files are empty; they contain no data. There will be no output this time.

find L*/{Con*/*/Data/L*/,}Pref* -type f -size 0c -name *.plist.??????? -exec mv {} .Trash/ \; 2>&-

Log out or restart the computer and empty the Trash.

F

Please sign out of iCloud in its preference pane and see whether there's any change. No data will be removed from the servers, and you can retrieve it by signing back in. That said, you should always have a current archive of the data for safety's sake, even if you don't sign out.

If you use iCloud Keychain, when you sign back in to iCloud follow one of the procedures described in this support article to set it up on an additional device.

G

You're running a version of Office 2008 with a known bug. There should be a patch available from Microsoft to fix the bug.

H

The symbol cache file is very large. It stores data used in logs and crash reports, and it may have grown because there have been a lot of crashes. The file is created automatically, and if deleted, it should be recreated when you restart the computer. Initially, at least, it will be a lot smaller.

I've seen one unverified report that a system became unbootable when the cache was deleted. That would have been due to a corrupt installation of OS X, but you should be prepared to reinstall if necessary. There is no reason to panic as long as you have good backups, which you should already have if you got this far.

Enter the following command in the same way as before:

sudo mv /S*/*/Caches/com.apple.coresymbolicationd /tmp/

Restart the computer.

I

Your Wi-Fi network is operating under the obsolete and insecure WEP encryption standard. Change your router's settings so that it uses WPA 2 Personal. If it doesn't support that standard, it should be replaced. I can't give you specific instructions for changing the setting, because all routers are different. Refer to the manufacturer's documentation.

The signal is also very weak. That could be because the computer is too far away from the router, or it could be another manifestation of a hardware fault.

I ran an Apple Hardware Test on my computer and no problems were detected

That doesn't prove anything. The hardware test is almost completely useless.

if it was a hardware fault it would seem to be a bit of a coincidence that it only occurred at the very moment I installed Yosemite

It's not a coincidence, and it's quite common. A drive on the verge of failure can be pushed over the edge by a sudden burst of write activity such as a system upgrade.

I wrote in my earlier comment what I think you should do. Good luck.