From: Wu Fengguang <fengguang.wu@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Linux Memory Management List <linux-mm@kvack.org>,
<linux-fsdevel@vger.kernel.org>
Cc: Wu Fengguang <fengguang.wu@intel.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 00/10] readahead stats/tracing, backwards prefetching and more (v3)
Date: Mon, 19 Dec 2011 18:23:08 +0800 [thread overview]
Message-ID: <20111219102308.488847921@intel.com> (raw)
Andrew,
This introduces the per-cpu readahead stats, tracing, backwards prefetching,
fixes context readahead for SSD random reads and does some other minor changes.
Changes since v2:
- use per-cpu counters for readahead stats
- make context readahead more conservative
- simplify readahead tracing format and use __print_symbolic()
- backwards prefetching and snap to EOF fixes and cleanups
Changes since v1:
- use bit fields: pattern, for_mmap, for_metadata, lseek
- comment the various readahead patterns
- drop boot options "readahead=" and "readahead_stats="
- add for_metadata
- add snapping to EOF
[PATCH 01/10] block: limit default readahead size for small devices
[PATCH 02/10] readahead: make context readahead more conservative
[PATCH 03/10] readahead: record readahead patterns
[PATCH 04/10] readahead: tag mmap page fault call sites
[PATCH 05/10] readahead: tag metadata call sites
[PATCH 06/10] readahead: add vfs/readahead tracing event
[PATCH 07/10] readahead: add /debug/readahead/stats
[PATCH 08/10] readahead: basic support for backwards prefetching
[PATCH 09/10] readahead: dont do start-of-file readahead after lseek()
[PATCH 10/10] readahead: snap readahead request to EOF
block/genhd.c | 20 ++
fs/Makefile | 1
fs/ext3/dir.c | 1
fs/ext4/dir.c | 1
fs/read_write.c | 3
fs/trace.c | 2
include/linux/fs.h | 41 ++++
include/linux/mm.h | 4
include/trace/events/vfs.h | 78 +++++++++
mm/Kconfig | 15 +
mm/filemap.c | 9 -
mm/readahead.c | 301 +++++++++++++++++++++++++++++++++--
12 files changed, 461 insertions(+), 15 deletions(-)
Thanks,
Fengguang
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WARNING: multiple messages have this Message-ID (diff)
From: Wu Fengguang <fengguang.wu@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Andi Kleen <andi@firstfloor.org>,
Linux Memory Management List <linux-mm@kvack.org>,
linux-fsdevel@vger.kernel.org,
Wu Fengguang <fengguang.wu@intel.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 00/10] readahead stats/tracing, backwards prefetching and more (v3)
Date: Mon, 19 Dec 2011 18:23:08 +0800 [thread overview]
Message-ID: <20111219102308.488847921@intel.com> (raw)
Andrew,
This introduces the per-cpu readahead stats, tracing, backwards prefetching,
fixes context readahead for SSD random reads and does some other minor changes.
Changes since v2:
- use per-cpu counters for readahead stats
- make context readahead more conservative
- simplify readahead tracing format and use __print_symbolic()
- backwards prefetching and snap to EOF fixes and cleanups
Changes since v1:
- use bit fields: pattern, for_mmap, for_metadata, lseek
- comment the various readahead patterns
- drop boot options "readahead=" and "readahead_stats="
- add for_metadata
- add snapping to EOF
[PATCH 01/10] block: limit default readahead size for small devices
[PATCH 02/10] readahead: make context readahead more conservative
[PATCH 03/10] readahead: record readahead patterns
[PATCH 04/10] readahead: tag mmap page fault call sites
[PATCH 05/10] readahead: tag metadata call sites
[PATCH 06/10] readahead: add vfs/readahead tracing event
[PATCH 07/10] readahead: add /debug/readahead/stats
[PATCH 08/10] readahead: basic support for backwards prefetching
[PATCH 09/10] readahead: dont do start-of-file readahead after lseek()
[PATCH 10/10] readahead: snap readahead request to EOF
block/genhd.c | 20 ++
fs/Makefile | 1
fs/ext3/dir.c | 1
fs/ext4/dir.c | 1
fs/read_write.c | 3
fs/trace.c | 2
include/linux/fs.h | 41 ++++
include/linux/mm.h | 4
include/trace/events/vfs.h | 78 +++++++++
mm/Kconfig | 15 +
mm/filemap.c | 9 -
mm/readahead.c | 301 +++++++++++++++++++++++++++++++++--
12 files changed, 461 insertions(+), 15 deletions(-)
Thanks,
Fengguang
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
WARNING: multiple messages have this Message-ID (diff)
From: Wu Fengguang <fengguang.wu@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Linux Memory Management List <linux-mm@kvack.org>,
<linux-fsdevel@vger.kernel.org>
Cc: Wu Fengguang <fengguang.wu@intel.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 00/10] readahead stats/tracing, backwards prefetching and more (v3)
Date: Mon, 19 Dec 2011 18:23:08 +0800 [thread overview]
Message-ID: <20111219102308.488847921@intel.com> (raw)
Andrew,
This introduces the per-cpu readahead stats, tracing, backwards prefetching,
fixes context readahead for SSD random reads and does some other minor changes.
Changes since v2:
- use per-cpu counters for readahead stats
- make context readahead more conservative
- simplify readahead tracing format and use __print_symbolic()
- backwards prefetching and snap to EOF fixes and cleanups
Changes since v1:
- use bit fields: pattern, for_mmap, for_metadata, lseek
- comment the various readahead patterns
- drop boot options "readahead=" and "readahead_stats="
- add for_metadata
- add snapping to EOF
[PATCH 01/10] block: limit default readahead size for small devices
[PATCH 02/10] readahead: make context readahead more conservative
[PATCH 03/10] readahead: record readahead patterns
[PATCH 04/10] readahead: tag mmap page fault call sites
[PATCH 05/10] readahead: tag metadata call sites
[PATCH 06/10] readahead: add vfs/readahead tracing event
[PATCH 07/10] readahead: add /debug/readahead/stats
[PATCH 08/10] readahead: basic support for backwards prefetching
[PATCH 09/10] readahead: dont do start-of-file readahead after lseek()
[PATCH 10/10] readahead: snap readahead request to EOF
block/genhd.c | 20 ++
fs/Makefile | 1
fs/ext3/dir.c | 1
fs/ext4/dir.c | 1
fs/read_write.c | 3
fs/trace.c | 2
include/linux/fs.h | 41 ++++
include/linux/mm.h | 4
include/trace/events/vfs.h | 78 +++++++++
mm/Kconfig | 15 +
mm/filemap.c | 9 -
mm/readahead.c | 301 +++++++++++++++++++++++++++++++++--
12 files changed, 461 insertions(+), 15 deletions(-)
Thanks,
Fengguang
next reply other threads:[~2011-12-19 10:23 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-19 10:23 Wu Fengguang [this message]
2011-12-19 10:23 ` [PATCH 00/10] readahead stats/tracing, backwards prefetching and more (v3) Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` [PATCH 01/10] block: limit default readahead size for small devices Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` [PATCH 02/10] readahead: make context readahead more conservative Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` [PATCH 03/10] readahead: record readahead patterns Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` [PATCH 04/10] readahead: tag mmap page fault call sites Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` [PATCH 05/10] readahead: tag metadata " Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` [PATCH 06/10] readahead: add vfs/readahead tracing event Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` [PATCH 07/10] readahead: add /debug/readahead/stats Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-23 12:59 ` [PATCH 07/10 v2] " Wu Fengguang
2011-12-23 12:59 ` Wu Fengguang
2011-12-23 13:48 ` Jan Kara
2011-12-23 13:48 ` Jan Kara
2011-12-19 10:23 ` [PATCH 08/10] readahead: basic support for backwards prefetching Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` [PATCH 09/10] readahead: dont do start-of-file readahead after lseek() Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` [PATCH 10/10] readahead: snap readahead request to EOF Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
2011-12-19 10:23 ` Wu Fengguang
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