16%
13.12.2018
disk reads: 1306 MB in 3.00 seconds = 434.77 MB/sec
federico@cybertron:~$ sudo hdparm -W /dev/sdb
/dev/sdb:
write-caching = 1 (on)
federico@cybertron:~$ sudo hdparm -W 0 /dev/sdb
/dev/sdb:
write
15%
22.05.2012
:2.16-5.5.el6 libcap-ng.x86_64 0:0.6.4-3.el6_0.1 libcom_err.x86_64 0:1.41.12-11.el6
libedit.x86_64 0:2.11-4.20080712cvs.1.el6 libevent.x86_64 0:1.4.13-1.el6
15%
07.10.2014
by the process
12m
12MB
S
Status of process
R
S
= sleeping, R
= running, Z
= zombie
%CPU
Percent CPU being used by the process on a per-CPU basis
15%
30.01.2020
: 1 (f=1): [w(1)][100.0%][r=0KiB/s,w=1401KiB/s][r=0,w=350 IOPS][eta 00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=3104: Sat Oct 12 14:39:08 2019
write: IOPS=352, BW=1410KiB/s (1444kB/s)(82.8Mi
15%
25.03.2020
local server machine (Listing 1). In this example, the four drives sdb
to sde
in lines 12, 13, 15, and 16 will be used to create the NVMe target. Each drive is 7TB, which you can verify
15%
19.11.2019
Jobs: 1 (f=1): [w(1)][100.0%][w=654MiB/s][w=167k IOPS][eta 00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=1225: Sat Oct 12 19:20:18 2019
write: IOPS=168k, BW=655MiB/s (687MB/s)(10.0GiB/15634msec); 0
15%
30.11.2025
the Buffer
01 [global]
02 ioengine=libaio
03 direct=1
04 filename=testfile
05 size=2g
06 bs=4m
07
08 refill_buffers=1
09
10 [write]
11 rw=write
12 write_bw_log
13
14 [read]
15 stonewall
16 rw=read
17 write
15%
18.07.2013
D revision 1
10 Supported: 7 6 5 4
11 Configuration:
12 Logical max current
13 cylinders 16383 16383
14 heads 16 16
15
15%
21.01.2020
local server machine (Listing 1). In this example, the four drives sdb
to sde
in lines 12, 13, 15, and 16 will be used to create the NVMe target. Each drive is 7TB, which you can verify
15%
15.02.2012
of Figure 10. Figure 11 plots the Write IO function count for the KB range intervals. Figure 12 plots the Write IO function count for the MB range intervals. Figure 13 plots the Write IO function count
