Members/masakoha/masa: 14/Cerium_IO/Cerium_IO

annotate 14/Cerium_IO/Cerium_IO_memo.txt @ 95:5fb2d057b5d9

add synth memo

author	Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
date	Thu, 08 May 2014 20:06:59 +0900
parents	4db3a0797aa7
children

rev	line source
95 5fb2d057b5d9 add synth memo Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> parents: 92 diff changeset	1 2014/05/08 (Thu)
5fb2d057b5d9 add synth memo Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> parents: 92 diff changeset	2 [memo]
5fb2d057b5d9 add synth memo Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> parents: 92 diff changeset	3 IO についての具体的な論文を出したい
5fb2d057b5d9 add synth memo Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> parents: 92 diff changeset	4 こういうアプリケーションは mmap がいい。fread がいい etc...
5fb2d057b5d9 add synth memo Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> parents: 92 diff changeset	5 Task の負荷が大きい例題があるといいよね
5fb2d057b5d9 add synth memo Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> parents: 92 diff changeset	6
5fb2d057b5d9 add synth memo Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> parents: 92 diff changeset	7 GPU で word count を走らせた時も計測してみよう
5fb2d057b5d9 add synth memo Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> parents: 92 diff changeset	8 pread を fread で書き換えたり、Blocked mmap もやってみて、様々な読み込み方法を試してみよう
5fb2d057b5d9 add synth memo Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> parents: 92 diff changeset	9
5fb2d057b5d9 add synth memo Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> parents: 92 diff changeset	10
91 40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	11 2014/05/01 (Thu)
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	12 [memo]
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	13 Linux のメモリキャッシュをクリアする
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	14 http://futuremix.org/2009/09/clear-linux-memory-cach
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	15 % sysctl -w vm.drop_caches=3
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	16
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	17 vm.drop_caches=index
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	18 index : 内容
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	19 1 : ページキャッシュ解放
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	20 2 : ダーティキャッシュ、inode 解放
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	21 3 : 1 かつ 2
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	22
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	23 sysctl について
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	24
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	25 ページキャッシュとは??
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	26 ダーティキャッシュとは??
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	27
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	28 Linux PC でのスペックの確認方法
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	29 http://www.asterisk-works.jp/wiki/index.php/Linux_PC%E3%81%A7%E3%81%AE%E3%82%B9%E3%83%9A%E3%83%83%E3%82%AF%E7%A2%BA%E8%AA%8D%E6%96%B9%E6%B3%95
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	30
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	31 OS の確認方法
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	32 cat /etc/redhat-release redhat 系
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	33 cat /etc/debian_version Debian 系
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	34 cat /etc/lsb-release Ubuntu
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	35
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	36 様々なハードウェア情報
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	37 cat /proc/cpuinfo
40ea07afb5b7 separate memo Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: diff changeset	38 cat /proc/meminfo
92 4db3a0797aa7 measure WordCount time in namako Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: 91 diff changeset	39
4db3a0797aa7 measure WordCount time in namako Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: 91 diff changeset	40 計測を Block num division size いろいろ試してみよう
4db3a0797aa7 measure WordCount time in namako Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: 91 diff changeset	41 Solaris でも測ってみたいよね -> mmap がはやいらしい
4db3a0797aa7 measure WordCount time in namako Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: 91 diff changeset	42
4db3a0797aa7 measure WordCount time in namako Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: 91 diff changeset	43 read size を自動チューニングしたい
4db3a0797aa7 measure WordCount time in namako Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp> parents: 91 diff changeset	44 どうにかできないかな??
95 5fb2d057b5d9 add synth memo Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> parents: 92 diff changeset	45
5fb2d057b5d9 add synth memo Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> parents: 92 diff changeset	46

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annotate 14/Cerium_IO/Cerium_IO_memo.txt @ 95:5fb2d057b5d9