3 ms·
This is mine old $20 located in London, doing exactly nothing, I just created it last week, it seems very slow in comparison: dd bs=1M count=1024 if=/dev/zer
by kawsper 13y ago
This is mine old $20 located in London, doing exactly nothing, I just created it last week, it seems very slow in comparison:
dd bs=1M count=1024 if=/dev/zero of=test conv=fdatasync
1024+0 records in
1024+0 records out
1073741824 bytes (1,1 GB) copied, 13,6791 s, 78,5 MB/s
hdparm -tT /dev/xvda
/dev/xvda:
Timing cached reads: 3580 MB in 2.00 seconds = 1794.00 MB/sec
Timing buffered disk reads: 336 MB in 3.01 seconds = 111.75 MB/sec
- cbull 13y agoDallas data center, not upgraded, faster than London, slower than upgrade. ;) $> dd bs=1M count=1024 if=/dev/zero of=test conv=fdatasync 1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB) copied, 2.19598 s, 489 MB/s $> hdparm -tT /dev/xvda /dev/xvda: Timing cached reads: 12446 MB in 1.98 seconds = 6273.29 MB/sec Timing buffered disk reads: 1768 MB in 3.00 seconds = 589.00 MB/sec
- KamiNuvini 13y agoHere's mine, with SSD upgrade: dd bs=1M count=1024 if=/dev/zero of=test conv=fdatasync 1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB) copied, 2.17496 s, 494 MB/s hdparm -tT /dev/xvda /dev/xvda: Timing cached reads: 18560 MB in 1.98 seconds = 9358.78 MB/sec Timing buffered disk reads: 2510 MB in 3.00 seconds = 836.61 MB/sec`