Carlos E. R. composed on 2019-02-21 18:53 (UTC+0100):
Felix Miata wrote:
> # hdparm -tT /dev/sda /dev/sdb /dev/sdc
> Timing cached reads: 13988 MB in 2.00 seconds = 7010.44 MB/sec
> Timing buffered disk reads: 22 MB in 3.10 seconds = 7.09 MB/sec
This one does seem very slow, and it is not part of
Maybe it is busy, something is using it heavily. SSD, you say?
> Timing cached reads: 14114 MB in 2.00 seconds = 7074.17 MB/sec
> Timing buffered disk reads: 358 MB in 3.01 seconds = 118.77 MB/sec
This one is a trifle slow, compared to the other.
I noticed that when they were brand new last summer.
> Timing cached reads: 14530 MB in 1.99 seconds = 7283.44 MB/sec
> Timing buffered disk reads: 406 MB in 3.02 seconds = 134.23 MB/sec
> # smartctl -t long /dev/sda
> Testing has begun.
> Please wait 30 minutes for test to complete.
> # smartctl -a /dev/sda
> smartctl 6.5 2016-05-07 r4318 [x86_64-linux-4.4.165-81-default] (SUSE RPM)
> Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
> === START OF INFORMATION SECTION ===
> Device Model: PNY CS900 120GB SSD
> Rotation Rate: Solid State Device
Does not say it is SSD
Are you sure? Besides that, I have my doubts PNY ever made or sold any type of storage
that wasn't solid state.
> 170 Unknown_Attribute 0x0003 088 088
000 Pre-fail Always - 134
This is the only value that is starting to go bad, but
we don't know what it is.
Could be nonsense from poor firmware I suppose.
> 241 Total_LBAs_Written 0x0012 100 100
000 Old_age Always - 110
It does not say how much life is left. The
Total_LBAs_Written count is absurd.
The question remaining is what next to do?
I emailed the PNY support address I found in the Newegg reviews after starting this
thread. No response as yet. Speed is marginally better logged out of KDE, but rather
erratic in percent, not improved by fresh boot, nominally different in TW & 15.0 and
definitely dismal compared to the rotating rust. These are all from 42.3:
Timing buffered disk reads: 28 MB in 3.27 seconds = 8.56 MB/sec
Timing buffered disk reads: 24 MB in 3.19 seconds = 7.53 MB/sec
Timing buffered disk reads: 26 MB in 3.16 seconds = 8.23 MB/sec
Timing buffered disk reads: 26 MB in 3.22 seconds = 8.07 MB/sec
Timing buffered disk reads: 24 MB in 3.37 seconds = 7.12 MB/sec
Timing buffered disk reads: 24 MB in 3.23 seconds = 7.42 MB/sec
When it was new last summer:
Timing buffered disk reads: 770 MB in 3.00 seconds = 256.62 MB/sec
Evolution as taught in public schools is religion, not science.
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata *** http://fm.no-ip.com/
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