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Re: [Qemu-devel] [PATCH v5 00/10] migration: Optimizate the xbzrle and f
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [Qemu-devel] [PATCH v5 00/10] migration: Optimizate the xbzrle and fix one corruption issue |
Date: |
Fri, 4 Apr 2014 18:16:11 +0100 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
* address@hidden (address@hidden) wrote:
> From: ChenLiang <address@hidden>
>
> V5-->V4
> * Fix two issues: one is cache_insert don't update the page which
> has been in the cache. Another avoiding the risk that run
> xbzrle_encode_buffer on changing data.
>
I've just been running this, and yes it does seem to be stable
now with this set (built on top of 2.0.0-rc1).
Thanks for the fixes!
Dave
>
> a. Optimization the xbzrle remarkable decrease the cache misses.
> The efficiency of compress increases more than fifty times.
> Before the patch set, the cache almost totally miss when the
> number of cache item less than the dirty page number. Now the
> hot pages in the cache will not be replaced by other pages.
>
> b. Reducing the data copy
>
> c. Fix one corruption issues.
>
> ChenLiang (10):
> XBZRLE: Fix one XBZRLE corruption issues
> migration: Add counts of updating the dirty bitmap
> migration: expose the bitmap_sync_count to the end user
> migration: expose xbzrle cache miss rate
> XBZRLE: optimize XBZRLE to decrease the cache misses
> XBZRLE: rebuild the cache_is_cached function
> xbzrle: don't check the value in the vm ram repeatedly
> xbzrle: check 8 bytes at a time after an concurrency scene
> migration: optimize xbzrle by reducing data copy
> migration: clear the dead code
>
> arch_init.c | 74 +++++++++++++++++-------------
> docs/xbzrle.txt | 8 ++++
> hmp.c | 4 ++
> include/migration/migration.h | 2 +
> include/migration/page_cache.h | 10 ++--
> migration.c | 3 ++
> page_cache.c | 101
> +++++++++++------------------------------
> qapi-schema.json | 9 +++-
> qmp-commands.hx | 15 ++++--
> xbzrle.c | 48 ++++++++++++++------
> 10 files changed, 144 insertions(+), 130 deletions(-)
>
> --
> 1.7.12.4
>
>
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK
- [Qemu-devel] [PATCH v5 05/10] XBZRLE: optimize XBZRLE to decrease the cache misses, (continued)
- [Qemu-devel] [PATCH v5 05/10] XBZRLE: optimize XBZRLE to decrease the cache misses, arei.gonglei, 2014/04/04
- [Qemu-devel] [PATCH v5 01/10] XBZRLE: Fix one XBZRLE corruption issues, arei.gonglei, 2014/04/04
- [Qemu-devel] [PATCH v5 04/10] migration: expose xbzrle cache miss rate, arei.gonglei, 2014/04/04
- [Qemu-devel] [PATCH v5 06/10] XBZRLE: rebuild the cache_is_cached function, arei.gonglei, 2014/04/04
- [Qemu-devel] [PATCH v5 07/10] xbzrle: don't check the value in the vm ram repeatedly, arei.gonglei, 2014/04/04
- [Qemu-devel] [PATCH v5 02/10] migration: Add counts of updating the dirty bitmap, arei.gonglei, 2014/04/04
- [Qemu-devel] [PATCH v5 08/10] xbzrle: check 8 bytes at a time after an concurrency scene, arei.gonglei, 2014/04/04
- Re: [Qemu-devel] [PATCH v5 00/10] migration: Optimizate the xbzrle and fix one corruption issue,
Dr. David Alan Gilbert <=
- [Qemu-devel] For 2.0? Re: [PATCH v5 00/10] migration: Optimizate the xbzrle and fix one corruption issue, Eric Blake, 2014/04/04