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RN104 6.9.1 poor SMB read/write performance
Hello,
I have RN104 with OS 6.9.1 on it. Since 6.9.0 i have really poor read/write performance from SMB shares.
Setup:
4 drives WD RED 3TB WD30EFRX - 40% free space
Link bound 2x1Gb uplinks to Netgear switch - both negotiated 1Gb (MTU 1500, static IP, no dropped frames/errors detected on switch links)
AV disabled
SMB3 encryption disabled globally
I have run NAStest1.7 from 3 different Windows 7 laptops - doesnt matter if connected through switch or directly to NAS - more or less same output:
Running a 400MB file write on (...) 5 times...
Iteration 1: 3,36 MB/sec
Iteration 2: 3,04 MB/sec
Iteration 3: 3,11 MB/sec
Iteration 4: 3,03 MB/sec
Iteration 5: 3,11 MB/sec
-----------------------------
Average (W): 3,13 MB/sec
-----------------------------
Running a 400MB file read on (...) 5 times...
Iteration 1: 14,42 MB/sec
Iteration 2: 14,99 MB/sec
Iteration 3: 15,36 MB/sec
Iteration 4: 15,24 MB/sec
Iteration 5: 14,84 MB/sec
-----------------------------
Average (R): 14,97 MB/sec
-----------------------------
Top command results during test:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4734 root 20 0 0 0 0 R 27.2 0.0 0:53.31 kworker/u2:6
6 root 20 0 0 0 0 R 26.5 0.0 1:40.00 kworker/u2:0
4731 root 20 0 0 0 0 D 26.5 0.0 0:42.04 kworker/u2:3
5616 user 20 0 48832 15020 13700 D 4.8 3.0 0:12.86 smbd
1018 root 0 -20 0 0 0 S 4.2 0.0 0:25.46 kworker/0:1H
1112 root 20 0 0 0 0 S 3.2 0.0 0:23.50 md127_raid5
4068 root 20 0 5736 2656 2160 R 1.0 0.5 0:10.30 top
I have no clue what can I check more... Anyone had simmilar issue?
SeeD
21 Replies
Replies have been turned off for this discussion
Do you get the same speeds if you break the bond (that is, disconnect one of the two ethernet cables)?
Hello,
Yes, it's the same story when only one link is active.
I forgot to mention that IPv6 is disabled, and disks run in RAID5.
Regards
SeeD
It doesn't appear to be CPU bound (based on your TOP results), and a network issue seems unlikely since the direct connects are giving you the same results, and IPv6 is disabled.
Have you looked at the SMART stats for the disks (download the log zip, and look in disk_info.log)?
You could also try a balance and maybe a defrag (retesting when both complete).
Also, if ReadyCloud is installed on all the PCs, you might want to uninstall it on one, just to make sure the system isn't routing through the VPN for some reason.
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