NFS file xfer of size of client memory = bad scene
Subsystems (2)
I have a box with 4GB. It's running 2.6.10.
I am trying to run Iozone with -g and an argument to it that is larger than the physical memory in the NFSv3 client machine.
For instance, on this 4GB box, I am trying '-g 4224m'. More specifically, the entire command line is:
./iozone -a -g 4224m -f /sol9box/testfile
As soon as it finally gets to trying a file size of 4194304, oom-killer steps in and starts blasting processes off my machine (WTF? Great.)
Brings up 'oom-killer' instances under 2.6.10 and the whole benchmark run dies, sometimes along with my shell, my X session, ANY net services at all (can't SSH into the box... can't get console to wake up...), etc.
Exact same command line worked in Linux 2.4.21 loaded on this same exact machine with the same NFSv3 server being talked to.
-------------------------------------------------------
The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt
_______________________________________________
NFS maillist - [email protected]
https://lists.sourceforge.net/lists/listinfo/nfs
fr den 14.01.2005 Klokka 18:34 (-0500) skreiv Jeff Blaine:
Quoted 6 lines
I have a box with 4GB. It's running 2.6.10.
I am trying to run Iozone with -g and an argument to it that is larger than the physical memory in the NFSv3 client machine.
Quoted 9 lines
For instance, on this 4GB box, I am trying '-g 4224m'. More specifically, the entire command line is:
./iozone -a -g 4224m -f /sol9box/testfileAs soon as it finally gets to trying a file size of 4194304, oom-killer steps in and starts blasting processes off my machine (WTF? Great.)
I suggest you take this bug up to LKML or the memory management lists. It is the responsibility of the VM to initiate flushing of data when the memory pressure gets too high: the NFS subsystems have little control over this matter.
Cheers,
Trond
Signature · 11 lines
Trond Myklebust <[email protected]> ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ NFS maillist - [email protected] https://lists.sourceforge.net/lists/listinfo/nfs