From: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
To: kumagai-atsushi@mxc.nes.nec.co.jp
Cc: kexec@lists.infradead.org, crash-utility@redhat.com
Subject: [PATCH 0/8] makedumpfile: Add Snappy Compression Support
Date: Tue, 03 Jul 2012 12:07:27 +0900 [thread overview]
Message-ID: <20120703030552.16633.42523.stgit@localhost6.localdomain6> (raw)
This patch series add snappy compression support, applied on top of
v1.4.4. snappy is fast compressoin algorhythm like lzo, but it's more
optimized than lzo on x86 machines and some others.
A lot of benchmark is available on the web. Here I only point at my
benchmark I posted a few weeks ago,
- http://lists.infradead.org/pipermail/kexec/2012-June/006425.html
where snappy shows mostly as good performance as simple copying on
the worst case that input data increases its data size during
compression; this means we can use snappy with mostly NO risk.
How to get snappy libraries:
1) Use yum framework to get snappy and snappy-devel packages, or
2) Visit official website: http://code.google.com/p/snappy/,
download snappy-<version>.tar.gz and then build it.
How to build makedumpfile with snappy support:
Do make as follows:
$ make USESNAPPY=on
---
HATAYAMA Daisuke (8):
Add manual description
Add help message
Add uncompression processing
Add compression processing
Notify snappy unsupporting when disabled
Add snappy build support
Add command-line processing for snappy
Add dump header for snappy
Makefile | 5 +++++
diskdump_mod.h | 2 ++
makedumpfile.8 | 9 +++++---
makedumpfile.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++------
makedumpfile.h | 3 +++
print_info.c | 16 ++++++++++-----
6 files changed, 80 insertions(+), 15 deletions(-)
--
Thanks.
HATAYAMA, Daisuke
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next reply other threads:[~2012-07-03 3:08 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-03 3:07 HATAYAMA Daisuke [this message]
2012-07-03 3:07 ` [PATCH 1/8] Add dump header for snappy HATAYAMA Daisuke
2012-07-03 3:07 ` [PATCH 2/8] Add command-line processing " HATAYAMA Daisuke
2012-07-03 3:07 ` [PATCH 3/8] Add snappy build support HATAYAMA Daisuke
2012-07-03 3:07 ` [PATCH 4/8] Notify snappy unsupporting when disabled HATAYAMA Daisuke
2012-07-03 3:07 ` [PATCH 5/8] Add compression processing HATAYAMA Daisuke
2012-07-03 3:07 ` [PATCH 6/8] Add uncompression processing HATAYAMA Daisuke
2012-07-03 3:08 ` [PATCH 7/8] Add help message HATAYAMA Daisuke
2012-07-03 3:08 ` [PATCH 8/8] Add manual description HATAYAMA Daisuke
2012-07-05 5:05 ` [PATCH 0/8] makedumpfile: Add Snappy Compression Support Atsushi Kumagai
2012-07-05 5:36 ` HATAYAMA Daisuke
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