Slow video streaming?

From the menu bar, select

 ▹ System Preferences… ▹ Flash Player ▹ Advanced

and click Delete All. Close the preference pane.

From the Safari menu bar, select

Safari ▹ Preferences... ▹ Privacy ▹ Remove All Website Data

and confirm. Test.

If there's no improvement, reboot and test again.

When you have the problem, note the exact time: hour, minute, second.

If you have more than one user account, these instructions must be carried out as an 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. Click Utilities, then Console in the icon grid.

Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select

View ▹ Show Log List

from the menu bar.

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 (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. In most cases, a few dozen lines are more than enough. It is never necessary or helpful to post more than about 100 lines. "The more, the better" is not the rule here.

Please do not indiscriminately dump thousands of lines from the log into this discussion.

Important: 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.

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. 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. All it does is to collect information about the state of the computer. That information goes nowhere unless you choose to share it. However, you should be cautious about running any kind of program (not just a shell script) at the request of a stranger on a public message board. If you have doubts, search this site for other discussions in which this procedure has been followed without any report of ill effects. If you can't satisfy yourself that the instructions are safe, don't follow them. Ask for other options.

Here's a summary of what you need to do, if you choose to proceed: Copy a line of text from this web page into the window of another application. Wait for the script to run. It usually takes a few minutes. Then paste the results, which will have been copied automatically, back into a reply on this page. The sequence is: copy, paste, wait, paste again. Details follow.

4. You may have started the computer in "safe" mode. Preferably, these steps should be taken in “normal” 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.

5. 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.

6. 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; clear; Fb='%s\n\t(%s)\n'; Fm='\n%s\n\n%s\n'; Fr='\nRAM details\n%s\n'; Fs='\n%s: %s\n'; Fu='user %s%%, system %s%%'; PB="/usr/libexec/PlistBuddy -c Print"; A () { [[ a -eq 0 ]]; }; M () { find -L "$d" -type f | while read f; do file -b "$f" | egrep -lq XML\|exec && echo $f; done; }; Pc () { o=`grep -v '^ *#' "$2"`; l=`wc -l <<< "$o"`; [[ l -gt 25 ]] && o=`head -n25 <<< "$o"`$'\n'"[$((l-25)) more line(s)]"; Pm "$1"; }; Pm () { [[ "$o" ]] && o=`sed -E '/^ *$/d; s/^ */ /; s/[-0-9A-Fa-f]{22,}/UUID/g' <<< "$o"` && printf "$Fm" "$1" "$o"; }; Pp () { o=`$PB "$2" | awk -F'= ' \/$3'/{print $2}'`; Pm "$1"; }; Ps () { o=`echo $o`; [[ ! "$o" =~ ^0?$ ]] && printf "$Fs" "$1" "$o"; }; R () { o=; [[ r -eq 0 ]]; }; SP () { system_profiler SP${1}DataType; }; id -G | grep -qw 80; a=$?; A && sudo true; r=$?; t=`date +%s`; clear; { A || echo $'No admin access\n'; A && ! R && echo $'No root access\n'; SP Software | sed '8!d;s/^ *//'; o=`SP Hardware | awk '/Mem/{print $2}'`; o=$((o<4?o:0)); Ps "Total RAM (GB)"; o=`SP Memory | sed '1,5d;/[my].*:/d'`; [[ "$o" =~ s:\ [^O]|x([^08]||0[^2]8[^0]) ]] && printf "$Fr" "$o"; o=`SP Diagnostics | sed '5,6!d'`; [[ "$o" =~ Pass ]] || Pm "POST"; p=`SP Power`; o=`awk '/Cy/{print $NF}' <<< "$p"`; o=$((o>=300?o:0)); Ps "Battery cycles"; o=`sed -n '/Cond.*: [^N]/{s/^.*://p;}' <<< "$p"`; Ps "Battery condition"; for b in Thunderbolt USB; do o=`SP $b | sed -En '1d;/:$/{s/ *:$//;x;s/\n//p;};/^ *V.* [0N].* /{s/ 0x.... //;s/[()]//g;s/(.*: )(.*)/ \(\2\)/;H;};/Apple|Genesy|SMSC/{s/.//g;h;}'`; Pm $b; done; o=`pmset -g therm | sed 's/^.*C/C/'`; [[ "$o" =~ No\ th|pms ]] && o=; Pm "Thermal conditions"; o=`pmset -g sysload | grep -v :`; [[ "$o" =~ =\ [^GO] ]] || o=; Pm "System load advisory"; o=`nvram boot-args | awk '{$1=""; print}'`; Ps "boot-args"; a=(/ ""); A=(System User); for i in 0 1; do o=`cd ${a[$i]}L*/Lo*/Diag* || continue; for f in *.{cr,h,pa,s}*; do [[ -f "$f" ]] || continue; d=$(stat -f%Sc -t%F "$f"); [[ "$f" =~ h$ ]] && grep -lq "^Thread c" "$f" && e=\* || e=; echo $d ${f%_$d*} ${f##*.} "$e"; done | sort | tail`; Pm "${A[$i]} diagnostics"; done; [[ "$o" =~ \*$ ]] && printf $'\n* Code injection\n'; o=`syslog -F bsd -k Sender kernel -k Message CReq 'GPU |hfs: Ru|I/O e|last value [1-9]|n Cause: -|NVDA\(|pagin|proc: t|SATA W|ssert|Thrott|timed? ?o' | tail -n25 | awk '/:/{$4=""; $5=""};1'`; Pm "Kernel messages"; o=`df -m / | awk 'NR==2 {print $4}'`; o=$((o<5120?o:0)); Ps "Free space (MiB)"; o=$(($(vm_stat | awk '/eo/{sub("\\.",""); print $2}')/256)); o=$((o>=1024?o:0)); Ps "Pageouts (MiB)"; s=( `sar -u 1 10 | sed '$!d'` ); [[ s[4] -lt 85 ]] && o=`printf "$Fu" ${s[1]} ${s[3]}` || o=; Ps "Total CPU usage" && { s=(`ps acrx -o comm,ruid,%cpu | sed '2!d'`); n=$((${#s[*]}-1)); c="${s[*]}"; o=${s[$n]}%; Ps "CPU usage by process \"${c% ${s[$((n-1))]}*}\" with UID ${s[$((n-1))]}"; }; s=(`top -R -l1 -n1 -o prt -stats command,uid,prt | sed '$!d'`); n=$((${#s[*]}-1)); s[$n]=${s[$n]%[+-]}; c="${s[*]}"; o=$((s[$n]>=25000?s[$n]:0)); Ps "Mach ports used by process \"${c% ${s[$((n-1))]}*}\" with UID ${s[$((n-1))]}"; o=`kextstat -kl | grep -v com\\.apple | cut -c53- | cut -d\< -f1`; Pm "Loaded extrinsic kernel extensions"; R && o=`sudo launchctl list | awk 'NR>1 && !/0x|com\.(apple|openssh|vix\.cron)|org\.(amav|apac|calendarse|cups|dove|isc|ntp|post[fg]|x)/{print $3}'`; Pm "Extrinsic daemons"; o=`launchctl list | awk 'NR>1 && !/0x|com\.apple|org\.(x|openbsd)|\.[0-9]+$/{print $3}'`; Pm "Extrinsic agents"; o=`for d in {/,}L*/Lau*; do M; done | grep -v com\.apple\.CSConfig | while read f; do ID=$($PB\ :Label "$f") || ID="No job label"; printf "$Fb" "$f" "$ID"; done`; Pm "launchd items"; o=`for d in /{S*/,}L*/Star*; do M; done`; Pm "Startup items"; o=`find -L /S*/L*/{C*/Sec*A,E}* {/,}L*/{A*d,Compon,Ex,In,iTu,Keyb,Mail/B,P*P,Qu*T,Scripti,Sec,Servi,Spo}* -type d -name Contents -prune | while read d; do ID=$($PB\ :CFBundleIdentifier "$d/Info.plist") || ID="No bundle ID"; [[ "$ID" =~ ^com\.apple\.[^x]|Accusys|ArcMSR|ATTO|HDPro|HighPoint|driver\.stex|hp-fax|\.hpio|JMicron|microsoft\.MDI|print|SoftRAID ]] || printf "$Fb" "${d%/Contents}" "$ID"; done`; Pm "Extrinsic loadable bundles"; o=`find -L /u*/{,*/}lib -type f | while read f; do file -b "$f" | grep -qw shared && ! codesign -v "$f" && echo $f; done`; Pm "Unsigned shared libraries"; o=`for e in INSERT_LIBRARIES LIBRARY_PATH; do launchctl getenv DYLD_$e; done`; Pm "Environment"; o=`find -L {,/u*/lo*}/e*/periodic -type f -mtime -10d`; Pm "Modified periodic scripts"; o=`scutil --proxy | grep Prox`; Pm "Proxies"; o=`scutil --dns | awk '/r\[0\] /{if ($NF !~ /^1(0|72\.(1[6-9]|2[0-9]|3[0-1])|92\.168)\./) print $NF; exit}'`; Ps "DNS"; R && o=`sudo profiles -P | grep : | wc -l`; Ps "Profiles"; f=auto_master; [[ `md5 -q /etc/$f` =~ ^b166 ]] || Pc $f /etc/$f; for f in fstab sysctl.conf crontab launchd.conf; do Pc $f /etc/$f; done; Pc "hosts" <(grep -v 'host *$' /etc/hosts); Pc "User launchd" ~/.launchd*; R && Pc "Root crontab" <(sudo crontab -l); Pc "User crontab" <(crontab -l | sed -E 's:/Users/[^/]+/:/Users/USER/:g'); R && o=`sudo defaults read com.apple.loginwindow LoginHook`; Pm "Login hook"; Pp "Global login items" /L*/P*/loginw* Path; Pp "User login items" L*/P*/*loginit* Name; Pp "Safari extensions" L*/Saf*/*/E*.plist Bundle | sed -E 's/(\..*$|-[1-9])//g'; o=`find ~ $TMPDIR.. \( -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 \) | wc -l`; Ps "Restricted user files"; cd; o=`SP Fonts | egrep "Valid: N|Duplicate: Y" | wc -l`; Ps "Font problems"; o=`find L*/{Con,Pref}* -type f ! -size 0 -name *.plist | while read f; do plutil -s "$f" >&- || echo $f; done`; Pm "Bad plists"; d=(Desktop L*/Keyc*); n=(20 7); for i in 0 1; do o=`find "${d[$i]}" -type f -maxdepth 1 | wc -l`; o=$((o<=n[$i]?0:o)); Ps "${d[$i]##*/} file count"; done; o=; [[ UID -eq 0 ]] && o=root; Ps "UID"; o=$((`date +%s`-t)); Ps "Elapsed time (s)"; } 2>/dev/null | pbcopy; exit 2>&-

exec bash

9. 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. In most cases, the difference is not important. If you don't know the password, or if you prefer not to enter it, just press return three times at the password prompt.

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.

10. The test will 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, there will be nothing in the Terminal window and no indication of progress. Wait for the line "[Process completed]" to appear. If you don't see it within half an hour or so, the test probably won't complete in a reasonable time. In that case, close the Terminal window and report the results. No harm will be done.

11. When the test is complete, 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.

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.

12. When you post the results, you might see the message, "You have included content in your post that is not permitted." It means that the forum software has misidentified something in the post as a violation of the rules. If that happens, please post the test results on Pastebin, then post a link here to the page you created.

Note: This is a public forum, and others may give you advice based on the results of the test. They speak only for themselves, and I don't necessarily agree with them.

________________________________

A.

The AutoCAD application makes some unusual system calls that can cause graphics acceleration to be disabled when it exits. The problem can be resolved, at least temporarily, by relaunching AutoCAD.

B.

The battery is due for replacement.

Will replacing the battery solve the problems?

It will certainly solve the problem of having a worn-out battery. Beyond that, I don't know.

It's not clear whether you took Step A.

If you would, please launch it and see whether there's an improvement.

Hi Linc,

I'm having a similar issue. Just recently I bought a Buffalo NAS which is in my LAN and Google Chromecast.

Everytime that I try to stream a movie (mp4 format) into the Chromecast, I end up with problems. Had a similar issue trying to use my Mac with PS3 Media player.

Now, you could argue that I have an issue with my WiFi or other appliances, but my partner has another Mac (mine is a MacPro 13" 2011 and hers is a MacPro 13" Retina 2013). and hers runs perfectly, almost no lag and no hanging.

I ran the diagnostic scripts that you mentioned before and I thought I'd put the results down here to see if you could help me figure out what it could be.

Many thanks!

#################################################

Boot Mode: Normal

Battery cycles: 581

System diagnostics

2014-07-21 ACDSee Mac Pro spin

2014-07-21 Finder spin

2014-07-21 Google Chrome Helper spin

2014-07-21 Google Chrome Helper spin

2014-07-21 Google Chrome spin

2014-07-21 Google Chrome spin

2014-07-21 Google Chrome spin

2014-07-21 Google Chrome spin

2014-07-21 PluginProcess spin

2014-07-21 PluginProcess spin

Kernel messages

Jul 15 21:47:14 AFP_VFS afpfs_DoReconnect: Max reconnect time: 30 secs, Connect timeout: 15 secs for /Volumes/Torrents

Jul 16 08:46:26 AFP_VFS afpfs_DoReconnect: Max reconnect time: 30 secs, Connect timeout: 15 secs for /Volumes/Movies

Jul 16 20:23:05 AFP_VFS afpfs_DoReconnect: Max reconnect time: 30 secs, Connect timeout: 15 secs for /Volumes/Torrents

Jul 17 18:37:40 Previous Shutdown Cause: -60

Jul 17 18:37:50 AFP_VFS afpfs_DoReconnect: Max reconnect time: 30 secs, Connect timeout: 15 secs for /Volumes/webaxs

Jul 17 18:48:19 Sound assertion in AppleHDAFunctionGroup at line 1057

Jul 19 19:40:29 AFP_VFS afpfs_DoReconnect: Max reconnect time: 30 secs, Connect timeout: 15 secs for /Volumes/webaxs

Jul 19 21:11:43 AFP_VFS afpfs_DoReconnect: Max reconnect time: 30 secs, Connect timeout: 15 secs for /Volumes/Movies

Jul 20 11:08:46 AFP_VFS afpfs_DoReconnect: Max reconnect time: 30 secs, Connect timeout: 15 secs for /Volumes/Movies

Jul 20 12:27:48 [BNBMouseDevice][waitForData][7c-c3-a1-63-c2-84] Timeout waiting for data

Jul 20 12:28:42 PM notification timeout (pid 3689, Messages)

--- last message repeated 1 time ---

Jul 20 20:15:41 AFP_VFS afpfs_DoReconnect: Max reconnect time: 30 secs, Connect timeout: 15 secs for /Volumes/Torrents

Jul 20 21:36:32 Previous Shutdown Cause: -60

Loaded extrinsic kernel extensions

com.paragon-software.filesystems.ntfs (100)

Extrinsic daemons

com.microsoft.office.licensing.helper

com.adobe.fpsaud

Extrinsic agents

com.paragon.ntfs.trial

com.citrix.ServiceRecords

com.citrix.ReceiverHelper

com.citrix.AuthManager_Mac

com.google.keystone.user.agent

launchd items

/Library/LaunchAgents/com.citrix.AuthManager_Mac.plist

(com.citrix.AuthManager_Mac)

/Library/LaunchAgents/com.citrix.ReceiverHelper.plist

(com.citrix.ReceiverHelper)

/Library/LaunchAgents/com.citrix.ServiceRecords.plist

(com.citrix.ServiceRecords)

/Library/LaunchAgents/com.teamviewer.teamviewer.plist

(com.teamviewer.teamviewer)

/Library/LaunchAgents/com.teamviewer.teamviewer_desktop.plist

(com.teamviewer.desktop)

/Library/LaunchDaemons/com.adobe.fpsaud.plist

(com.adobe.fpsaud)

/Library/LaunchDaemons/com.microsoft.office.licensing.helper.plist

(com.microsoft.office.licensing.helper)

/Library/LaunchDaemons/com.teamviewer.teamviewer_service.plist

(com.teamviewer.service)

Library/LaunchAgents/com.google.keystone.agent.plist

(com.google.keystone.user.agent)

Extrinsic loadable bundles

/Library/Internet Plug-Ins/CitrixICAClientPlugIn.plugin

(com.citrix.citrixicaclientplugIn)

/Library/Internet Plug-Ins/F5 Inspection Host Plugin.plugin

(com.f5.inspectionhostplugin)

/Library/Internet Plug-Ins/Flash Player.plugin

(com.macromedia.Flash Player.plugin)

/Library/Internet Plug-Ins/SharePointBrowserPlugin.plugin

(com.microsoft.sharepoint.browserplugin)

/Library/Internet Plug-Ins/SharePointWebKitPlugin.webplugin

(com.microsoft.sharepoint.webkitplugin)

/Library/PreferencePanes/Flash Player.prefPane

(com.adobe.flashplayerpreferences)

/Library/PreferencePanes/NTFSforMacOSX.prefPane

(com.paragon-software.filesystems.ntfs.prefpanel)

Library/Address Book Plug-Ins/SkypeABDialer.bundle

(com.skype.skypeabdialer)

Library/Address Book Plug-Ins/SkypeABSMS.bundle

(com.skype.skypeabsms)

Unsigned shared libraries

/usr/lib/libtcl.dylib

/usr/lib/libtcl8.5.dylib

/usr/lib/libtk.dylib

/usr/lib/libtk8.5.dylib

/usr/lib/libUFSDNTFS.dylib

User login items

iTunesHelper.app

Caffeine.app

Dropbox.app

Safari extensions

AdBlock

Restricted user files: 49

Font problems: 21

Elapsed time (s): 141