Frank Mayhar <fmayhar@xxxxxxxxxx> writes: > Nick Piggin has been doing work on lock contention in VFS, in particular > to remove the dcache and inode locks, and we are very interested in this > work. He has entirely eliminated two of the most contended locks, > replacing them with a combination of more granular locking, seqlocks, > RCU lists and other mechanisms that reduce locking and contention in > general. He has published this work at > > git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin.git > > As we have run into problems with lock contention, Google is very > interested in these improvements. Thanks Frank for the data. Yes publication of any profiles would be interesting. We're also seeing major issues with dcache and inode locks in local testing. -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>