[Ocfs2-users] Slow OCFS2 file creation / how to make ocfs2 generally faster?

[Sunil Mushran]

Was on vacation. May take me few days to clean up my mail box.

On 08/29/2011 11:35 PM, Stefan Priebe - Profihost AG wrote:
> Am 22.08.2011 23:27, schrieb Sunil Mushran:
>> On 08/22/2011 11:11 AM, Stefan Priebe - Profihost AG wrote:
>>>>>> BTW, how much memory do the nodes have?
>>>>>> Lock Resources: 1863 (497079)
>>>>>>
>>>>>> This means that that node has created 497K lock resources
>>>>>> but have under 2000 cached. That could be due to deletes
>>>>>> or could be due to lack of memory (lock churning).
>>>>> They all have 8GB of mem but only 1,5-2,5 are in use regarding free
>>>>> command. What does lock churning mean and is there another setting /
>>>>> value i can look at?
>>>>
>>>> Its tied to the inode cache. As long as the inode is cached,
>>>> the lock resource will be cached.
>>> Thanks for your answer but i didn't get it. It is enough "main" memory
>>> free. Or is this to some special kind of memory? perhaps tuneable via
>>> sysctl?
>>>
>>
>> inode cache. I don't think you can pin the size of this cache.
>> It size varies. But we are jumping to conclusions. Right now we
>> don't know whether that is the problem as the numbers you sent
>> me were fairly random.
> Hi Sunil,
>
> had you any chance to look into my newest logfiles?
>
> Stefan