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 >
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