[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
RE: Read/write slow on nvme drive - Supermicro X10DRL-CT
>Is there a mistake..? You wrote: "on netbsd you get 17881619 b/s speed
>using sata(=~18mb/sec) and 129372725 b/s using pcie(=~130mb/s) => pcie is 7
>times faster than sata....
Yes that’s what it seems but The 5 time slower is when I untar a file.. on
the SSD it take 1min to write 200mb while on the ssd it take 6 minutes.
When I run dd on raw partition using 1024k blocks.. I get 380mb and 289mb ..
however using a bootable utility app on the same server I get 3100mb and 504
mb so the hardware is all good.
dd if=/dev/rdk0 of=/dev/null bs=1024k ->(this is on the pcie)
^C93836+0 records in
93836+0 records out
98394177536 bytes transferred in 258.920 secs (380017679 bytes/sec)
# dd if=/dev/rdk1 of=/dev/null bs=1024k(this is on the ssd)
^C57226+0 records in
57226+0 records out
60005810176 bytes transferred in 207.282 secs (289488764 bytes/sec)
Not sure if I missed anything on netbsd. Im using current build 7.99.35 the
os detected the disk as ld0 and also setup a gpt partition as dk0
Main Index |
Thread Index |