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

From: Thavatchai Makphaibulchoke
Date: Sun Feb 09 2014 - 20:56:31 EST


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
>



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