Slow SMB/AFP share file listing

Hello all

I do have the same issue as discribed here.

I have tried the Terminal ls what is quick.

The ls -l is very slow look like 1 line per second.

In the finder I disabled all additional information so it just shows the file.

But it is still very very slow in the finder.

For me no way to work with.

I am running Paralles with xp.

The only way for me is using the virtual machine what works fine.

I am a bit disapointed about Apple not solving the issue.

This is already known for a long time.

Just for your Information I conncet to our server in US.

I am located in Germany and we are using Cisco anyconnect to establish the vpn connection.

Again this works fine with the virtual machine.

I hope that Apple will solve the issue so I do not need the virtual machine any longer.

Hi Christoph,

did you try the "delayed ACK" TCP fix?

http://sniptools.com/mac-osx/fix-slow-network-file-transfers-across-mac-osx-lion

that (combined with the disabling file preview in finder), i think, worked for me.

im a network guy so i understand this - basically i think most NAS's run a similar flavour network stack (freeBSD linux derivative) and they arent "delayed ACK" compatible yet.... which means its basically erroring and timeouts are kicking in, which in TCP is a bad thing. The delayed ACK is *meant* to streamline comms between *modern* hosts. And it will be fine to have on everywher e a few years in the future probably. OSX have tried enabling it by default. Windows still have it off (explains why windows is still fast - even thorugh a VM, and yes i tested the same thing). I dont think the internet is ready for the leap OSX has made yet TBH.

I havent had a chance to thoroughly test yet... .but the theory is good.

and limited tests show it seemed to work for me.

try it and let us know.

K.

Hello keiran_harris

Thanks for the hint.

I have tried it and it is still very slow.

The Terminal is working at speed when just use ls command.

Is there a way to tweek the finder to do the same?

I have a feeling that the finder is still doing the ls -l command but does not show it.

Thanks

Christoph

How many files are in this directory? One where i REALLY noticed the problem was one that had over 10,000 files. So quite an uncommon case. My solution there was to divide it up by creating subdirectories. Which masks the issue sure, but is an effextive workaround. The finder delay time is linear and directly relates to the amount of files in that directory. Hope this suggestion helps you. I will update the thread again when ive had a chance to do more detailed tests to pinpoint the problem. May be a few weeks away though! Cheers, keiran.

I am not sure but there are a few hunderd folders.

Also I notice that how deeper I go into the folders how longer it takes.

Again with the Terminal an using the ls its fast

About 2 sec. to show all folders and files.

I am looking into the Finder to see how to tweak.

I am not able to change the scructure of the folders as this is the server from our mother company in USA.

Cheers

Christoph

I have exactly the same symptomps. Tried both cifs: and smb: methods. I don't have huge folder tree.

Please keep me posted of the progress and if real fix is found.

@keiran_harris you are a superstar

The delayed ack fix works perfectly

Thank you

Adrian