Re: [PATCH v4 0/3] ext4: increase mbcache scalability

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 01/24/2014 11:09 PM, Andreas Dilger wrote:
> I think the ext4 block groups are locked with the blockgroup_lock that has about the same number of locks as the number of cores, with a max of 128, IIRC.  See blockgroup_lock.h. 
> 
> While there is some chance of contention, it is also unlikely that all of the cores are locking this area at the same time.  
> 
> Cheers, Andreas
> 


Thanks Andreas for the suggestion. Will try that versus adding just a new private spinlock array in mbcache and compare the performance.

Thanks,
Mak.

--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux