Re: [patch 00/52] vfs scalability patches updated | KernelTrap

Re: [patch 00/52] vfs scalability patches updated

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From: Andi Kleen

Subject: Re: [patch 00/52] vfs scalability patches updated

Date: Thursday, July 1, 2010 - 10:28 am

Nick Piggin <npiggin@suse.de> writes:
quoted text>
> What's that good for? A single threaded, cached `git diff` on the linux
> kernel tree takes just 81% of the time after the vfs patches (0.27s vs
> 0.33s).

That's very cool!

Hopefully we can make some progress on the whole patchkit now.

-Andi
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Messages in current thread:

[patch 00/52] vfs scalability patches updated, npiggin, (Wed Jun 23, 8:02 pm)

[patch 01/52] kernel: add bl_list, npiggin, (Wed Jun 23, 8:02 pm)

[patch 02/52] fs: fix superblock iteration race, npiggin, (Wed Jun 23, 8:02 pm)

[patch 03/52] fs: fs_struct rwlock to spinlock, npiggin, (Wed Jun 23, 8:02 pm)

[patch 04/52] fs: cleanup files_lock, npiggin, (Wed Jun 23, 8:02 pm)

[patch 05/52] lglock: introduce special lglock and brlock ..., npiggin, (Wed Jun 23, 8:02 pm)

[patch 06/52] fs: scale files_lock, npiggin, (Wed Jun 23, 8:02 pm)

[patch 07/52] fs: brlock vfsmount_lock, npiggin, (Wed Jun 23, 8:02 pm)

[patch 08/52] fs: scale mntget/mntput, npiggin, (Wed Jun 23, 8:02 pm)

[patch 09/52] fs: dcache scale hash, npiggin, (Wed Jun 23, 8:02 pm)

[patch 10/52] fs: dcache scale lru, npiggin, (Wed Jun 23, 8:02 pm)

[patch 11/52] fs: dcache scale nr_dentry, npiggin, (Wed Jun 23, 8:02 pm)

[patch 12/52] fs: dcache scale dentry refcount, npiggin, (Wed Jun 23, 8:02 pm)

[patch 13/52] fs: dcache scale d_unhashed, npiggin, (Wed Jun 23, 8:02 pm)

[patch 14/52] fs: dcache scale subdirs, npiggin, (Wed Jun 23, 8:02 pm)

[patch 15/52] fs: dcache scale inode alias list, npiggin, (Wed Jun 23, 8:02 pm)

[patch 16/52] fs: dcache RCU for multi-step operaitons, npiggin, (Wed Jun 23, 8:02 pm)

[patch 17/52] fs: dcache remove dcache_lock, npiggin, (Wed Jun 23, 8:02 pm)

[patch 18/52] fs: dcache reduce dput locking, npiggin, (Wed Jun 23, 8:02 pm)

[patch 19/52] fs: dcache per-bucket dcache hash locking, npiggin, (Wed Jun 23, 8:02 pm)

[patch 20/52] fs: dcache reduce dcache_inode_lock, npiggin, (Wed Jun 23, 8:02 pm)

[patch 21/52] fs: dcache per-inode inode alias locking, npiggin, (Wed Jun 23, 8:02 pm)

[patch 22/52] fs: dcache rationalise dget variants, npiggin, (Wed Jun 23, 8:02 pm)

[patch 23/52] fs: dcache percpu nr_dentry, npiggin, (Wed Jun 23, 8:02 pm)

[patch 24/52] fs: dcache reduce d_parent locking, npiggin, (Wed Jun 23, 8:02 pm)

[patch 25/52] fs: dcache DCACHE_REFERENCED improve, npiggin, (Wed Jun 23, 8:02 pm)

[patch 26/52] fs: icache lock s_inodes list, npiggin, (Wed Jun 23, 8:02 pm)

[patch 27/52] fs: icache lock inode hash, npiggin, (Wed Jun 23, 8:02 pm)

[patch 28/52] fs: icache lock i_state, npiggin, (Wed Jun 23, 8:02 pm)

[patch 29/52] fs: icache lock i_count, npiggin, (Wed Jun 23, 8:02 pm)

[patch 30/52] fs: icache lock lru/writeback lists, npiggin, (Wed Jun 23, 8:02 pm)

[patch 31/52] fs: icache atomic inodes_stat, npiggin, (Wed Jun 23, 8:02 pm)

[patch 32/52] fs: icache protect inode state, npiggin, (Wed Jun 23, 8:02 pm)

[patch 33/52] fs: icache atomic last_ino, iunique lock, npiggin, (Wed Jun 23, 8:02 pm)

[patch 34/52] fs: icache remove inode_lock, npiggin, (Wed Jun 23, 8:02 pm)

[patch 35/52] fs: icache factor hash lock into functions, npiggin, (Wed Jun 23, 8:02 pm)

[patch 36/52] fs: icache per-bucket inode hash locks, npiggin, (Wed Jun 23, 8:02 pm)

[patch 37/52] fs: icache lazy lru, npiggin, (Wed Jun 23, 8:02 pm)

[patch 38/52] fs: icache RCU free inodes, npiggin, (Wed Jun 23, 8:02 pm)

[patch 39/52] fs: icache rcu walk for i_sb_list, npiggin, (Wed Jun 23, 8:02 pm)

[patch 40/52] fs: dcache improve scalability of pseudo fil ..., npiggin, (Wed Jun 23, 8:02 pm)

[patch 41/52] fs: icache reduce atomics, npiggin, (Wed Jun 23, 8:02 pm)

[patch 42/52] fs: icache per-cpu last_ino allocator, npiggin, (Wed Jun 23, 8:02 pm)

[patch 43/52] fs: icache per-cpu nr_inodes counter, npiggin, (Wed Jun 23, 8:02 pm)

[patch 44/52] fs: icache per-CPU sb inode lists and locks, npiggin, (Wed Jun 23, 8:02 pm)

[patch 45/52] fs: icache RCU hash lookups, npiggin, (Wed Jun 23, 8:02 pm)

[patch 46/52] fs: icache reduce locking, npiggin, (Wed Jun 23, 8:02 pm)

[patch 47/52] fs: keep inode with backing-dev, npiggin, (Wed Jun 23, 8:02 pm)

[patch 48/52] fs: icache split IO and LRU lists, npiggin, (Wed Jun 23, 8:03 pm)

[patch 49/52] fs: icache scale writeback list locking, npiggin, (Wed Jun 23, 8:03 pm)

[patch 50/52] mm: implement per-zone shrinker, npiggin, (Wed Jun 23, 8:03 pm)

[patch 51/52] fs: per-zone dentry and inode LRU, npiggin, (Wed Jun 23, 8:03 pm)

[patch 52/52] fs: icache less I_FREEING time, npiggin, (Wed Jun 23, 8:03 pm)

Re: [patch 01/52] kernel: add bl_list, Eric Dumazet, (Wed Jun 23, 11:04 pm)

Re: [patch 06/52] fs: scale files_lock, Peter Zijlstra, (Thu Jun 24, 12:52 am)

Re: [patch 14/52] fs: dcache scale subdirs, Peter Zijlstra, (Thu Jun 24, 12:56 am)

Re: [patch 16/52] fs: dcache RCU for multi-step operaitons, Peter Zijlstra, (Thu Jun 24, 12:58 am)

Re: [patch 24/52] fs: dcache reduce d_parent locking, Peter Zijlstra, (Thu Jun 24, 1:44 am)

Re: [patch 30/52] fs: icache lock lru/writeback lists, Peter Zijlstra, (Thu Jun 24, 1:58 am)

Re: [patch 42/52] fs: icache per-cpu last_ino allocator, Andi Kleen, (Thu Jun 24, 2:48 am)

Re: [patch 14/52] fs: dcache scale subdirs, Andi Kleen, (Thu Jun 24, 2:50 am)

Re: [patch 37/52] fs: icache lazy lru, Andi Kleen, (Thu Jun 24, 2:52 am)

Re: [patch 50/52] mm: implement per-zone shrinker, Andi Kleen, (Thu Jun 24, 3:06 am)

Re: [patch 01/52] kernel: add bl_list, Nick Piggin, (Thu Jun 24, 7:42 am)

Re: [patch 06/52] fs: scale files_lock, Nick Piggin, (Thu Jun 24, 8:00 am)

Re: [patch 16/52] fs: dcache RCU for multi-step operaitons, Nick Piggin, (Thu Jun 24, 8:03 am)

Re: [patch 24/52] fs: dcache reduce d_parent locking, Nick Piggin, (Thu Jun 24, 8:07 am)

Re: [patch 30/52] fs: icache lock lru/writeback lists, Nick Piggin, (Thu Jun 24, 8:09 am)

Re: [patch 30/52] fs: icache lock lru/writeback lists, Peter Zijlstra, (Thu Jun 24, 8:13 am)

Re: [patch 24/52] fs: dcache reduce d_parent locking, Paul E. McKenney, (Thu Jun 24, 8:32 am)

Re: [patch 42/52] fs: icache per-cpu last_ino allocator, Nick Piggin, (Thu Jun 24, 8:52 am)

Re: [patch 14/52] fs: dcache scale subdirs, Nick Piggin, (Thu Jun 24, 8:53 am)

Re: [patch 37/52] fs: icache lazy lru, Nick Piggin, (Thu Jun 24, 8:59 am)

Re: [patch 50/52] mm: implement per-zone shrinker, Nick Piggin, (Thu Jun 24, 9:00 am)

Re: [patch 01/52] kernel: add bl_list, Eric Dumazet, (Thu Jun 24, 9:01 am)

Re: [patch 24/52] fs: dcache reduce d_parent locking, Nick Piggin, (Thu Jun 24, 9:05 am)

Re: [patch 42/52] fs: icache per-cpu last_ino allocator, Andi Kleen, (Thu Jun 24, 9:19 am)

Re: [patch 50/52] mm: implement per-zone shrinker, Andi Kleen, (Thu Jun 24, 9:27 am)

Re: [patch 50/52] mm: implement per-zone shrinker, Andi Kleen, (Thu Jun 24, 9:32 am)

Re: [patch 50/52] mm: implement per-zone shrinker, Andi Kleen, (Thu Jun 24, 9:37 am)

Re: [patch 42/52] fs: icache per-cpu last_ino allocator, Nick Piggin, (Thu Jun 24, 9:38 am)

Re: [patch 24/52] fs: dcache reduce d_parent locking, Paul E. McKenney, (Thu Jun 24, 9:41 am)

Re: [patch 16/52] fs: dcache RCU for multi-step operaitons, john stultz, (Thu Jun 24, 10:22 am)

Re: [patch 16/52] fs: dcache RCU for multi-step operaitons, john stultz, (Thu Jun 24, 10:26 am)

Re: [patch 05/52] lglock: introduce special lglock and brl ..., Thomas Gleixner, (Thu Jun 24, 11:15 am)

Re: [patch 05/52] lglock: introduce special lglock and brl ..., Nick Piggin, (Thu Jun 24, 11:22 pm)

Re: [patch 00/52] vfs scalability patches updated, Christoph Hellwig, (Fri Jun 25, 12:12 am)

Re: [patch 00/52] vfs scalability patches updated, Nick Piggin, (Fri Jun 25, 1:05 am)

Re: [patch 05/52] lglock: introduce special lglock and brl ..., Thomas Gleixner, (Fri Jun 25, 2:50 am)

Re: [patch 01/52] kernel: add bl_list, Paul E. McKenney, (Mon Jun 28, 2:37 pm)

Re: [patch 24/52] fs: dcache reduce d_parent locking, Paul E. McKenney, (Mon Jun 28, 2:50 pm)

Re: [patch 01/52] kernel: add bl_list, Nick Piggin, (Mon Jun 28, 11:30 pm)

Re: [patch 02/52] fs: fix superblock iteration race, Christoph Hellwig, (Tue Jun 29, 6:02 am)

Re: [patch 02/52] fs: fix superblock iteration race, Nick Piggin, (Tue Jun 29, 7:56 am)

Re: [patch 02/52] fs: fix superblock iteration race, Linus Torvalds, (Tue Jun 29, 10:35 am)

Re: [patch 02/52] fs: fix superblock iteration race, Nick Piggin, (Tue Jun 29, 10:41 am)

Re: [patch 02/52] fs: fix superblock iteration race, Linus Torvalds, (Tue Jun 29, 10:52 am)

Re: [patch 02/52] fs: fix superblock iteration race, Linus Torvalds, (Tue Jun 29, 10:58 am)

Re: [patch 02/52] fs: fix superblock iteration race, Nick Piggin, (Tue Jun 29, 1:14 pm)

Re: [patch 02/52] fs: fix superblock iteration race, Chris Clayton, (Tue Jun 29, 1:38 pm)

Re: [patch 50/52] mm: implement per-zone shrinker, Dave Chinner, (Tue Jun 29, 11:28 pm)

Re: [patch 02/52] fs: fix superblock iteration race, Chris Clayton, (Wed Jun 30, 12:13 am)

Re: [patch 29/52] fs: icache lock i_count, Dave Chinner, (Wed Jun 30, 12:27 am)

Re: [patch 37/52] fs: icache lazy lru, Dave Chinner, (Wed Jun 30, 1:38 am)

Re: [patch 38/52] fs: icache RCU free inodes, Dave Chinner, (Wed Jun 30, 1:57 am)

Re: [patch 44/52] fs: icache per-CPU sb inode lists and locks, Dave Chinner, (Wed Jun 30, 2:26 am)

Re: [patch 52/52] fs: icache less I_FREEING time, Dave Chinner, (Wed Jun 30, 3:13 am)

Re: [patch 00/52] vfs scalability patches updated, Dave Chinner, (Wed Jun 30, 4:30 am)

Re: [patch 50/52] mm: implement per-zone shrinker, Nick Piggin, (Wed Jun 30, 5:03 am)

Re: [patch 37/52] fs: icache lazy lru, Nick Piggin, (Wed Jun 30, 5:06 am)

Re: [patch 38/52] fs: icache RCU free inodes, Nick Piggin, (Wed Jun 30, 5:07 am)

Re: [patch 44/52] fs: icache per-CPU sb inode lists and locks, Nick Piggin, (Wed Jun 30, 5:08 am)

Re: [patch 51/52] fs: per-zone dentry and inode LRU, Nick Piggin, (Wed Jun 30, 5:13 am)

Re: [patch 52/52] fs: icache less I_FREEING time, Nick Piggin, (Wed Jun 30, 5:14 am)

Re: [patch 00/52] vfs scalability patches updated, Nick Piggin, (Wed Jun 30, 5:40 am)

Re: [patch 02/52] fs: fix superblock iteration race, Al Viro, (Wed Jun 30, 5:51 am)

Re: [patch 00/52] vfs scalability patches updated, Frank Mayhar, (Wed Jun 30, 10:08 am)

Re: [patch 29/52] fs: icache lock i_count, Dave Chinner, (Wed Jun 30, 7:36 pm)

Re: [patch 37/52] fs: icache lazy lru, Dave Chinner, (Wed Jun 30, 7:46 pm)

Re: [patch 44/52] fs: icache per-CPU sb inode lists and locks, Dave Chinner, (Wed Jun 30, 8:12 pm)

Re: [patch 52/52] fs: icache less I_FREEING time, Dave Chinner, (Wed Jun 30, 8:33 pm)

Re: [patch 00/52] vfs scalability patches updated, Dave Chinner, (Wed Jun 30, 8:56 pm)

Re: [patch 29/52] fs: icache lock i_count, Nick Piggin, (Thu Jul 1, 12:54 am)

Re: [patch 37/52] fs: icache lazy lru, Nick Piggin, (Thu Jul 1, 12:57 am)

Re: [patch 44/52] fs: icache per-CPU sb inode lists and locks, Nick Piggin, (Thu Jul 1, 1:00 am)

Re: [patch 52/52] fs: icache less I_FREEING time, Nick Piggin, (Thu Jul 1, 1:06 am)

Re: [patch 00/52] vfs scalability patches updated, Nick Piggin, (Thu Jul 1, 1:20 am)

Re: [patch 29/52] fs: icache lock i_count, Nick Piggin, (Thu Jul 1, 2:36 am)

Re: [patch 29/52] fs: icache lock i_count, Frank Mayhar, (Thu Jul 1, 9:21 am)

Re: [patch 00/52] vfs scalability patches updated, Nick Piggin, (Thu Jul 1, 10:23 am)

Re: [patch 00/52] vfs scalability patches updated, Andi Kleen, (Thu Jul 1, 10:28 am)

Re: [patch 00/52] vfs scalability patches updated, Linus Torvalds, (Thu Jul 1, 10:35 am)

Re: [patch 00/52] vfs scalability patches updated, Andi Kleen, (Thu Jul 1, 10:36 am)

Re: [patch 00/52] vfs scalability patches updated, Nick Piggin, (Thu Jul 1, 10:52 am)

Re: [patch 00/52] vfs scalability patches updated, Paul E. McKenney, (Thu Jul 1, 9:01 pm)

Re: [patch 29/52] fs: icache lock i_count, Andrew Morton, (Fri Jul 2, 7:03 pm)

Re: [patch 29/52] fs: icache lock i_count, Nick Piggin, (Fri Jul 2, 8:41 pm)

Re: [patch 29/52] fs: icache lock i_count, Andrew Morton, (Fri Jul 2, 9:31 pm)

Re: [patch 29/52] fs: icache lock i_count, Nick Piggin, (Fri Jul 2, 10:06 pm)

Re: [patch 29/52] fs: icache lock i_count, Nick Piggin, (Fri Jul 2, 10:18 pm)

Re: [patch 29/52] fs: icache lock i_count, Dave Chinner, (Mon Jul 5, 3:41 pm)

Re: [patch 29/52] fs: icache lock i_count, Theodore Tso, (Tue Jul 6, 3:38 am)

Re: [patch 29/52] fs: icache lock i_count, Nick Piggin, (Tue Jul 6, 6:04 am)

Re: [patch 00/52] vfs scalability patches updated, Nick Piggin, (Tue Jul 6, 10:49 am)

Re: [patch 24/52] fs: dcache reduce d_parent locking, Nick Piggin, (Wed Jul 7, 7:35 am)

Re: [patch 29/52] fs: icache lock i_count, Frank Mayhar, (Wed Jul 7, 10:00 am)

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