USBSSDとやらを買った

いやーすごい
PCデポの行列すごいわー

8GBのUSBメモリを買おうと思ってたんだけど・・・開店10分くらいで特売品全て完売とかねえわー

代わりに、値段がUSBメモリの3倍もするUSBSSDとやらを買ってきた

これこれ


リードスピードを測ってみた

 Timing cached reads:   3352 MB in  2.00 seconds = 1676.24 MB/sec
 Timing buffered disk reads:   84 MB in  3.01 seconds =  27.88 MB/sec

/dev/sdc:
 Timing cached reads:   3022 MB in  2.00 seconds = 1511.01 MB/sec
 Timing buffered disk reads:   82 MB in  3.03 seconds =  27.10 MB/sec

/dev/sdc:
 Timing cached reads:   3294 MB in  2.00 seconds = 1647.18 MB/sec
 Timing buffered disk reads:   86 MB in  3.02 seconds =  28.47 MB/sec

こっちはA-data製USBメモリのリードスピード

 Timing cached reads:   2272 MB in  2.00 seconds = 1135.79 MB/sec
 Timing buffered disk reads:   82 MB in  3.00 seconds =  27.29 MB/sec

あんまり変わらん
これじゃただのでかいUSBメモリじゃあねえか
解せぬ

USBSSDをbonnieで測ってみる
$ sudo apt-get install bonnie++
$ sudo mount /dev/sdb1 /mnt
$ bonnie -d /mnt

Version  1.96       ------Sequential Output------ --Sequential Input- --Random-
Concurrency   1     -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
Phantom0      3512M   345  88 15205   5  9842   5  2261  92 31492   6  41.8   1
Latency             37051us     720ms    1771ms   12630us   41851us   87097us
Version  1.96       ------Sequential Create------ --------Random Create--------
Phantom0            -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16    72  40 +++++ +++  1478  91    70  46 +++++ +++   214  40
Latency               120ms    8606us   10740us     124ms    7143us     473ms
1.96,1.96,Phantom0,1,1294117446,3512M,,345,88,15205,5,9842,5,2261,92,31492,6,41.8,1,16,,,,,72,40,+++++,+++,1478,91,70,46,+++++,+++,214,40,37051us,720ms,1771ms,12630us,41851us,87097us,120ms,8606us,10740us,124ms,7143us,473ms

冗談キツイぜボニー

BUFFALOUSBSSDは悪いわけじゃないけどすごく良い訳でもない・・・ただのでかいUSBメモリだった


このざまでこっち買えばよかった