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 0/9] readahead stats/tracing, backwards prefetching and more (v4)
Date: Fri, 27 Jan 2012 11:05:24 +0800 [thread overview]
Message-ID: <20120127030524.854259561@intel.com> (raw)
Andrew,
Will you include it into the -mm tree?
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 v3:
- default to CONFIG_READAHEAD_STATS=n
- drop "block: limit default readahead size for small devices"
(and expect some distro udev rules to do the job)
- use percpu_counter for the readahead stats
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 1/9] readahead: make context readahead more conservative
[PATCH 2/9] readahead: record readahead patterns
[PATCH 3/9] readahead: tag mmap page fault call sites
[PATCH 4/9] readahead: tag metadata call sites
[PATCH 5/9] readahead: add vfs/readahead tracing event
[PATCH 6/9] readahead: add /debug/readahead/stats
[PATCH 7/9] readahead: basic support for backwards prefetching
[PATCH 8/9] readahead: dont do start-of-file readahead after lseek()
[PATCH 9/9] readahead: snap readahead request to EOF
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 | 310 +++++++++++++++++++++++++++++++++--
11 files changed, 450 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>,
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 0/9] readahead stats/tracing, backwards prefetching and more (v4)
Date: Fri, 27 Jan 2012 11:05:24 +0800 [thread overview]
Message-ID: <20120127030524.854259561@intel.com> (raw)
Andrew,
Will you include it into the -mm tree?
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 v3:
- default to CONFIG_READAHEAD_STATS=n
- drop "block: limit default readahead size for small devices"
(and expect some distro udev rules to do the job)
- use percpu_counter for the readahead stats
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 1/9] readahead: make context readahead more conservative
[PATCH 2/9] readahead: record readahead patterns
[PATCH 3/9] readahead: tag mmap page fault call sites
[PATCH 4/9] readahead: tag metadata call sites
[PATCH 5/9] readahead: add vfs/readahead tracing event
[PATCH 6/9] readahead: add /debug/readahead/stats
[PATCH 7/9] readahead: basic support for backwards prefetching
[PATCH 8/9] readahead: dont do start-of-file readahead after lseek()
[PATCH 9/9] readahead: snap readahead request to EOF
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 | 310 +++++++++++++++++++++++++++++++++--
11 files changed, 450 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 0/9] readahead stats/tracing, backwards prefetching and more (v4)
Date: Fri, 27 Jan 2012 11:05:24 +0800 [thread overview]
Message-ID: <20120127030524.854259561@intel.com> (raw)
Andrew,
Will you include it into the -mm tree?
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 v3:
- default to CONFIG_READAHEAD_STATS=n
- drop "block: limit default readahead size for small devices"
(and expect some distro udev rules to do the job)
- use percpu_counter for the readahead stats
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 1/9] readahead: make context readahead more conservative
[PATCH 2/9] readahead: record readahead patterns
[PATCH 3/9] readahead: tag mmap page fault call sites
[PATCH 4/9] readahead: tag metadata call sites
[PATCH 5/9] readahead: add vfs/readahead tracing event
[PATCH 6/9] readahead: add /debug/readahead/stats
[PATCH 7/9] readahead: basic support for backwards prefetching
[PATCH 8/9] readahead: dont do start-of-file readahead after lseek()
[PATCH 9/9] readahead: snap readahead request to EOF
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 | 310 +++++++++++++++++++++++++++++++++--
11 files changed, 450 insertions(+), 15 deletions(-)
Thanks,
Fengguang
next reply other threads:[~2012-01-27 3:05 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-27 3:05 Wu Fengguang [this message]
2012-01-27 3:05 ` [PATCH 0/9] readahead stats/tracing, backwards prefetching and more (v4) Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` [PATCH 1/9] readahead: make context readahead more conservative Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` [PATCH 2/9] readahead: record readahead patterns Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` [PATCH 3/9] readahead: tag mmap page fault call sites Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` [PATCH 4/9] readahead: tag metadata " Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` [PATCH 5/9] readahead: add vfs/readahead tracing event Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` [PATCH 6/9] readahead: add /debug/readahead/stats Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 16:21 ` Christoph Lameter
2012-01-27 16:21 ` Christoph Lameter
2012-01-27 20:15 ` Andrew Morton
2012-01-27 20:15 ` Andrew Morton
2012-01-29 5:07 ` Wu Fengguang
2012-01-29 5:07 ` Wu Fengguang
2012-01-30 4:02 ` Dave Chinner
2012-01-30 4:02 ` Dave Chinner
2012-01-27 3:05 ` [PATCH 7/9] readahead: basic support for backwards prefetching Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` [PATCH 8/9] readahead: dont do start-of-file readahead after lseek() Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` [PATCH 9/9] readahead: snap readahead request to EOF Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-01-27 3:05 ` Wu Fengguang
2012-02-09 3:22 ` [PATCH 6/9 update changelog] readahead: add /debug/readahead/stats Wu Fengguang
2012-02-09 3:22 ` Wu Fengguang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20120127030524.854259561@intel.com \
--to=fengguang.wu@intel.com \
--cc=akpm@linux-foundation.org \
--cc=andi@firstfloor.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.