さくらのVPS DISK I/O メモ 東京第二リージョン

memo

[root@blog ~]# for n in `seq 1 19`; do hdparm -t /dev/vda1; sleep 60; done >sakuravps.log
[root@blog ~]# cat sakuravps.log 
 
/dev/vda1:
 Timing buffered disk reads:  46 MB in  3.04 seconds =  15.14 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  24 MB in  3.19 seconds =   7.51 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  10 MB in  3.80 seconds =   2.63 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  18 MB in  3.20 seconds =   5.62 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  10 MB in  3.14 seconds =   3.19 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  10 MB in  3.38 seconds =   2.96 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  10 MB in  3.13 seconds =   3.19 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  12 MB in  3.22 seconds =   3.73 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  16 MB in  3.12 seconds =   5.12 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  14 MB in  3.57 seconds =   3.93 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:   8 MB in  3.16 seconds =   2.53 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  10 MB in  3.45 seconds =   2.90 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  16 MB in  3.05 seconds =   5.24 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  16 MB in  3.23 seconds =   4.96 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  18 MB in  3.89 seconds =   4.63 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  10 MB in  3.37 seconds =   2.96 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  26 MB in  3.08 seconds =   8.45 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:  20 MB in  3.33 seconds =   6.01 MB/sec
 
/dev/vda1:
 Timing buffered disk reads:   8 MB in  3.46 seconds =   2.31 MB/sec