---
# System prepended metadata

title: Untitled

---


30GBのメモリを割り当てて計測した。


シーケンシャルアクセス
2Gバイトのファイルを作成して計測する。

ランダムアクセス
16-512KBのファイルを50 * 1000個16つのファイルに作成してIO性能を計測する。


/secは処理回数である。
ランダムアクセスでは、data領域では3477回/sでscratch領域では3761回/sだった。
## data領域
```
(base) s58002@wisteria01 ~/u/l/sbin ❯❯❯ ./bonnie++ -d ~/bonsample -n 50:512:16:16 -s 2G -r 30G

Writing with putc()...done
Writing intelligently...done
Rewriting...done
Reading with getc()...done
Reading intelligently...done
start 'em...done...done...done...
Create files in sequential order...done.
Stat files in sequential order...done.
Delete files in sequential order...done.
Create files in random order...done.
Stat files in random order...done.
Delete files in random order...done.
Version  1.04       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
wisteria01       2G 258521  99 874394  99 880225  99 303760  99 +++++ +++ +++++ +++
                    ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
       50:512:16/16  3629  28  5435  31  8966  27  3477  28  5342  34  5166  19
wisteria01,2G,258521,99,874394,99,880225,99,303760,99,+++++,+++,+++++,+++,50:512:16/16,3629,28,5435,31,8966,27,3477,28,5342,34,5166,19
```


## scratch領域
```
(base) s58002@wisteria01 ~/u/l/sbin ❯❯❯ ./bonnie++ -d /data/scratch/gs58/s58002/test -n 50:512:16:16 -s 2G -r 30G
Writing with putc()...done
Writing intelligently...done
Rewriting...done
Reading with getc()...done
Reading intelligently...done
start 'em...done...done...done...
Create files in sequential order...done.
Stat files in sequential order...done.
Delete files in sequential order...done.
Create files in random order...done.
Stat files in random order...done.
Delete files in random order...done.
Version  1.04       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
wisteria01       2G 259272  99 884147  99 979934  99 311409  99 +++++ +++ +++++ +++
                    ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
       50:512:16/16  3892  25  5884  33  6458  20  3761  26  5677  33  7272  24
wisteria01,2G,259272,99,884147,99,979934,99,311409,99,+++++,+++,+++++,+++,50:512:16/16,3892,25,5884,33,6458,20,3761,26,5677,33,7272,24



```