SSD 硬碟讀寫紀錄

SSD 硬碟讀寫紀錄

1.MySQL
#time dd if=/dev/zero of=/var/test bs=2k count=1000000

1000000+0 records in
1000000+0 records out
2048000000 bytes (2.0 GB) copied, 11.0035 s, 186 MB/s

real 0m11.311s
user 0m0.112s
sys 0m3.407s

#hdparm -Tt /dev/sda
/dev/sda:
Timing cached reads: 17856 MB in 2.00 seconds = 8942.26 MB/sec
Timing buffered disk reads: 490 MB in 3.01 seconds = 162.90 MB/sec

2.Main Server
#time dd if=/dev/zero of=/var/test bs=2k count=1000000
1000000+0 records in
1000000+0 records out
2048000000 bytes (2.0 GB) copied, 7.75729 s, 264 MB/s

real 0m7.980s
user 0m0.072s
sys 0m2.265s

#hdparm -Tt /dev/sda
/dev/sda:
Timing cached reads: 28628 MB in 2.00 seconds = 14337.89 MB/sec
Timing buffered disk reads: 1032 MB in 3.00 seconds = 343.47 MB/sec

發表迴響

你的電子郵件位址並不會被公開。 必要欄位標記為 *