From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: Marcelo Tosatti <marcelo@kvack.org>
Cc: kosaki.motohiro@jp.fujitsu.com, linux-mm@kvack.org,
"Daniel Sp蚣g" <daniel.spang@gmail.com>,
"Rik van Riel" <riel@redhat.com>,
"Andrew Morton" <akpm@linux-foundation.org>
Subject: Re: [RFC][patch 2/2] mem notifications v3 improvement for large system
Date: Tue, 25 Dec 2007 19:41:32 +0900 [thread overview]
Message-ID: <20071225193327.D276.KOSAKI.MOTOHIRO@jp.fujitsu.com> (raw)
In-Reply-To: <20071225192625.D273.KOSAKI.MOTOHIRO@jp.fujitsu.com>
2nd improvement
test2
2. after test1, run file I/O
console1# LANG=C; while [ 1 ] ;do sleep 1; date; vmstat 1 1 -S M -a; done
console2# dd if=/dev/zero of=tmp bs=100M count=10
result:
- swap out unoccured.
- cache increase about 1GB.
- anon freed about 1GB.
very good!
$ pgrep mem_notify|wc -l
11079
$ dd if=/dev/zero of=tmp1 bs=100M count=10
$ pgrep mem_notify|wc -l
10307
$ LANG=C; while [ 1 ] ;do sleep 1; date; vmstat 1 1 -S M ; done
Wed Dec 26 04:36:19 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
0 0 0 70 42 211 0 0 54 425 785 3145 5 4 89 1 0
Wed Dec 26 04:36:20 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
0 0 0 70 42 211 0 0 54 424 784 3142 5 4 89 1 0
Wed Dec 26 04:36:21 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
0 0 0 70 42 211 0 0 54 424 784 3139 5 4 89 1 0
Wed Dec 26 04:36:22 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
0 0 0 70 42 211 0 0 54 424 783 3136 5 4 89 1 0
Wed Dec 26 04:36:23 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
0 1 0 70 42 211 0 0 54 423 783 3133 5 4 89 1 0
Wed Dec 26 04:36:24 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
0 0 0 70 42 211 0 0 54 423 782 3130 5 4 89 1 0
Wed Dec 26 04:36:25 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
0 0 0 70 42 211 0 0 54 422 782 3128 5 4 89 1 0
Wed Dec 26 04:36:26 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
0 0 0 70 42 211 0 0 54 422 781 3125 5 4 89 1 0
Wed Dec 26 04:36:35 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
820 6 0 89 45 1052 0 0 53 482 1133 3466 5 5 89 1 0
Wed Dec 26 04:36:36 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
355 6 0 87 45 1124 0 0 53 497 1132 3521 5 5 89 1 0
Wed Dec 26 04:36:37 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
241 6 0 88 45 1188 0 0 53 512 1132 3576 5 5 89 1 0
Wed Dec 26 04:36:38 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
0 3 0 93 45 1208 0 0 53 529 1131 3632 5 5 89 1 0
Wed Dec 26 04:36:39 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
0 4 0 93 45 1208 0 0 53 545 1130 3687 5 5 89 1 0
Wed Dec 26 04:36:40 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
830 4 0 93 45 1208 0 0 53 560 1129 3741 5 5 89 2 0
Wed Dec 26 04:36:41 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
103 4 0 93 45 1208 0 0 53 575 1128 3794 5 5 89 2 0
Wed Dec 26 04:36:42 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
133 4 0 94 45 1208 0 0 53 587 1128 3846 5 5 89 2 0
Wed Dec 26 04:36:43 JST 2007
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
59 4 0 97 45 1208 0 0 53 603 1127 3898 5 5 88 2 0
/kosaki
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next prev parent reply other threads:[~2007-12-25 10:41 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-24 20:32 [PATCH] mem notifications v3 Marcelo Tosatti
2007-12-25 3:47 ` KOSAKI Motohiro
2007-12-25 4:56 ` [RFC] add poll_wait_exclusive() API KOSAKI Motohiro
2007-12-27 21:05 ` Marcelo Tosatti
2007-12-25 8:31 ` [PATCH] mem notifications v3 KOSAKI Motohiro
2007-12-25 10:31 ` [RFC][patch 1/2] mem notifications v3 improvement for large system KOSAKI Motohiro
2007-12-27 21:04 ` Marcelo Tosatti
2007-12-28 0:38 ` KOSAKI Motohiro
2007-12-25 10:31 ` [RFC][patch 2/2] " KOSAKI Motohiro
2007-12-25 10:41 ` KOSAKI Motohiro [this message]
2007-12-27 4:49 ` [RFC][patch] mem_notify more faster reduce load average KOSAKI Motohiro
2007-12-27 20:13 ` [PATCH] mem notifications v3 Marcelo Tosatti
2007-12-28 1:44 ` KOSAKI Motohiro
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