Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2

Nick Piggin
2004-07-28T01:21:40Z

Klaus Dittrich wrote:
> Klaus Dittrich wrote:

>> I did a test with a value of 500. echo 500 >
>> /proc/sys/vm/vfs_cache_pressure.
>>
>> The highest numbers a cat /proc/sys/fs/dentry-state then showed during
>> a du -s were
>> 780721 750505 45 0 0 0
>>
>> The system survied. No processes were killed.
>>
>> With vfs_cache_pressure=100 a cat /proc/sys/fs/dentry-state showed
>> numbers of about 1090000 before processes got killed.
>>
>> Hope that helps to narrow the region to look for what has changed.
>>
> PS. Two concurrent du -s however "kernel: Out of Memory: Killed process .."

Your vfs_cache_pressure probably wants to be higher than 500. Make it 10000.