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Reduced speed after a couple of days
I have problems with the network speed of my ReadyNAS Ultra. Copying to the NAS or reading from it will get slower and slower after some time. Then it looks like this ...
After a restart of the NAS, the speed is as expected again.
What can I do to preserve the speed without restarting the device so often?
After a restart of the NAS, the speed is as expected again.
What can I do to preserve the speed without restarting the device so often?
4 Replies
Replies have been turned off for this discussion
- Do you have ssh access? If so, you could take a look at what was running (cpu and memory usage).
- Yes I have ssh access. Can you give me a short description of what i have to do? Which commands? So I can post the output here ...
- top is good, as it will give you a updating list of processes that includes CPU and memory use for each.
q is the way to quit it
By default it sorts the list by CPU% . If you enter > while it is running, it will shift the sort to the next column (which is memory %) You want to look at both. Entering < shifts the sort back to the left to CPU - Sorry for the late reply but the machine was fast the last days :)
Here is the output of top and I hope someone can figure out, why is it so slow.top - 21:01:31 up 12 days, 1:32, 1 user, load average: 0.03, 0.04, 0.05
Tasks: 90 total, 1 running, 89 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.3%us, 2.2%sy, 0.0%ni, 96.9%id, 0.1%wa, 0.0%hi, 0.6%si, 0.0%st
Mem: 1012912k total, 926104k used, 86808k free, 151576k buffers
Swap: 524272k total, 736k used, 523536k free, 442388k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
12073 root 20 0 2324 1008 772 R 2 0.1 0:00.01 top
1 root 20 0 2068 548 456 S 0 0.1 0:12.24 init
2 root 20 0 0 0 0 S 0 0.0 0:00.00 kthreadd
3 root 20 0 0 0 0 S 0 0.0 0:04.81 ksoftirqd/0
4 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/0:0
6 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0
7 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/1
9 root 20 0 0 0 0 S 0 0.0 0:01.91 ksoftirqd/1
10 root 20 0 0 0 0 S 0 0.0 88:41.84 kworker/0:1
11 root 0 -20 0 0 0 S 0 0.0 0:00.00 khelper
158 root 20 0 0 0 0 S 0 0.0 0:01.97 sync_supers
160 root 20 0 0 0 0 S 0 0.0 0:00.08 bdi-default
162 root 0 -20 0 0 0 S 0 0.0 0:00.00 kblockd
163 root 0 -20 0 0 0 S 0 0.0 0:00.00 kacpid
164 root 0 -20 0 0 0 S 0 0.0 0:00.00 kacpi_notify
165 root 0 -20 0 0 0 S 0 0.0 0:00.00 kacpi_hotplug
270 root 20 0 0 0 0 S 0 0.0 0:00.00 khubd
277 root 0 -20 0 0 0 S 0 0.0 0:00.00 md
375 root 0 -20 0 0 0 S 0 0.0 0:00.00 rpciod
376 root 20 0 0 0 0 S 0 0.0 90:02.58 kworker/1:1
402 root 20 0 0 0 0 S 0 0.0 1:06.10 kswapd0
467 root 20 0 0 0 0 S 0 0.0 0:00.24 fsnotify_mark
469 root 0 -20 0 0 0 S 0 0.0 0:00.00 aio
485 root 0 -20 0 0 0 S 0 0.0 0:00.00 nfsiod
501 root 0 -20 0 0 0 S 0 0.0 0:00.00 crypto
518 root 0 -20 0 0 0 S 0 0.0 0:00.00 kthrotld
563 root 0 -20 0 0 0 S 0 0.0 0:00.00 scsi_tgtd
595 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_0
598 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_1
601 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_2
604 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_3
607 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_4
610 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_5
623 root 0 -20 0 0 0 S 0 0.0 0:00.00 bond0
687 root 0 -20 0 0 0 S 0 0.0 0:00.00 kstriped
690 root 0 -20 0 0 0 S 0 0.0 0:00.00 ksnapd
691 root 0 -20 0 0 0 S 0 0.0 0:00.00 kondemand
692 root 0 -20 0 0 0 S 0 0.0 0:00.00 kconservative
695 root 0 -20 0 0 0 S 0 0.0 0:00.00 usbhid_resumer
799 root 20 0 0 0 0 S 0 0.0 0:49.37 md0_raid1
805 root 20 0 0 0 0 S 0 0.0 0:03.48 md1_raid1
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3134 root 20 0 56096 35m 1452 S 0 3.6 108:13.98 twonkyserver
9580 root 20 0 87492 34m 9320 S 0 3.5 0:06.47 apache-ssl
9584 admin 20 0 87492 26m 864 S 0 2.6 0:00.00 apache-ssl
10708 server 20 0 17612 5824 4688 S 0 0.6 0:55.07 smbd
11780 root 20 0 17000 4480 3864 S 0 0.4 0:12.64 smbd
12022 root 20 0 12964 3084 2460 S 0 0.3 0:00.24 sshd
3125 root 20 0 18004 3068 1116 S 0 0.3 0:35.98 minidlna
11774 root 20 0 14928 2928 2316 S 0 0.3 0:00.02 smbd
11777 root 20 0 14928 2928 2316 S 0 0.3 0:00.02 smbd
2917 root 20 0 3600 2328 1180 S 0 0.2 72:13.42 monitor_enclosu
2240 root 20 0 14928 2188 1588 S 0 0.2 0:03.26 smbd
12024 root 20 0 5832 1684 1356 S 0 0.2 0:00.01 bash
2245 root 20 0 14916 1492 956 S 0 0.1 0:00.02 smbd
2881 root 20 0 8828 1392 956 S 0 0.1 0:18.50 nmbd
12059 root 20 0 2328 1028 788 R 0 0.1 0:01.22 top
3107 avahi 20 0 2832 1024 784 S 0 0.1 0:23.94 avahi-daemon
919 root 16 -4 2344 968 348 S 0 0.1 0:00.56 udevd
2128 root 20 0 1996 884 436 S 0 0.1 2:13.77 noflushd
3131 root 20 0 2124 848 700 S 0 0.1 0:00.15 chronyd
2209 root 20 0 3760 844 652 S 0 0.1 0:35.91 cupsd
1895 root 20 0 5460 816 484 S 0 0.1 0:00.00 sshd
2219 root 20 0 1976 752 588 S 0 0.1 0:02.69 cron
10572 root 20 0 6092 640 404 S 0 0.1 0:00.04 kissdx
5113 root 20 0 6092 612 384 S 0 0.1 0:00.00 kissdx
5831 root 20 0 6092 608 384 S 0 0.1 0:00.06 kissdx
8872 root 20 0 6092 608 384 S 0 0.1 0:00.00 kissdx
2171 root 20 0 6092 596 384 S 0 0.1 0:00.07 kissdx
2181 root 20 0 1748 596 496 S 0 0.1 0:02.79 syslogd
2216 messageb 20 0 2752 556 392 S 0 0.1 0:00.00 dbus-daemon
1 root 20 0 2068 548 456 S 0 0.1 0:12.24 init
3138 root 20 0 6092 520 328 S 0 0.1 0:00.13 kissdx
1851 root 20 0 1696 476 400 S 0 0.0 0:00.00 acpid
2183 daemon 20 0 1956 448 340 S 0 0.0 0:00.01 atd
3110 root 20 0 1700 428 372 S 0 0.0 0:00.00 getty
2193 root 20 0 1700 340 268 S 0 0.0 0:00.04 klogd
2720 root 20 0 1724 336 260 S 0 0.0 0:39.86 ifplugd
2792 root 20 0 1724 332 260 S 0 0.0 0:39.96 ifplugd
2831 root 20 0 1724 332 260 S 0 0.0 0:40.49 ifplugd
2136 daemon 20 0 1812 316 244 S 0 0.0 0:00.00 portmap
1857 root 20 0 1688 304 244 S 0 0.0 0:00.04 raidard
2131 root 20 0 2532 116 0 S 0 0.0 0:00.00 quota_nld
And this is the output after restart. O.K. Twonky takes 100% CPU but this is only while indexing the folder. Anyway - copy speed is finetop - 21:33:48 up 2 min, 1 user, load average: 1.24, 0.55, 0.20
Tasks: 92 total, 1 running, 91 sleeping, 0 stopped, 0 zombie
Cpu(s): 50.1%us, 0.3%sy, 0.0%ni, 48.8%id, 0.8%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 1012912k total, 452144k used, 560768k free, 53876k buffers
Swap: 524272k total, 0k used, 524272k free, 105392k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3129 root 20 0 23040 12m 1660 S 100 1.2 1:31.39 twonkyserver
3513 root 20 0 2328 1024 788 R 1 0.1 0:00.03 top
3405 root 20 0 12832 3084 2460 S 0 0.3 0:00.10 sshd
1 root 20 0 2068 664 564 S 0 0.1 0:00.66 init
2 root 20 0 0 0 0 S 0 0.0 0:00.00 kthreadd
3 root 20 0 0 0 0 S 0 0.0 0:00.00 ksoftirqd/0
4 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/0:0
5 root 20 0 0 0 0 S 0 0.0 0:00.01 kworker/u:0
6 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0
7 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/1
8 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/1:0
9 root 20 0 0 0 0 S 0 0.0 0:00.01 ksoftirqd/1
10 root 20 0 0 0 0 S 0 0.0 0:00.22 kworker/0:1
11 root 0 -20 0 0 0 S 0 0.0 0:00.00 khelper
12 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/u:1
158 root 20 0 0 0 0 S 0 0.0 0:00.00 sync_supers
160 root 20 0 0 0 0 S 0 0.0 0:00.00 bdi-default
162 root 0 -20 0 0 0 S 0 0.0 0:00.00 kblockd
163 root 0 -20 0 0 0 S 0 0.0 0:00.00 kacpid
164 root 0 -20 0 0 0 S 0 0.0 0:00.00 kacpi_notify
165 root 0 -20 0 0 0 S 0 0.0 0:00.00 kacpi_hotplug
270 root 20 0 0 0 0 S 0 0.0 0:00.00 khubd
277 root 0 -20 0 0 0 S 0 0.0 0:00.00 md
375 root 0 -20 0 0 0 S 0 0.0 0:00.00 rpciod
401 root 20 0 0 0 0 S 0 0.0 0:00.00 kswapd0
466 root 20 0 0 0 0 S 0 0.0 0:00.00 fsnotify_mark
468 root 0 -20 0 0 0 S 0 0.0 0:00.00 aio
484 root 0 -20 0 0 0 S 0 0.0 0:00.00 nfsiod
500 root 0 -20 0 0 0 S 0 0.0 0:00.00 crypto
517 root 0 -20 0 0 0 S 0 0.0 0:00.00 kthrotld
562 root 0 -20 0 0 0 S 0 0.0 0:00.00 scsi_tgtd
594 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_0
597 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_1
600 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_2
603 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_3
606 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_4
609 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_5
612 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/u:2
613 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/u:3
614 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/u:4
615 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/u:5
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2722 root 20 0 95220 43m 10m S 0 4.4 0:03.45 apache-ssl
3167 admin 20 0 96580 38m 3720 S 15 3.9 0:01.00 apache-ssl
3301 admin 20 0 96576 37m 3384 S 0 3.8 0:00.40 apache-ssl
3129 root 20 0 27200 15m 1660 S 100 1.6 2:19.26 twonkyserver
3395 root 20 0 15300 3628 3000 S 0 0.4 0:00.06 smbd
3120 root 20 0 18004 3372 1320 S 0 0.3 0:00.07 minidlna
3405 root 20 0 12964 3084 2460 S 0 0.3 0:00.13 sshd
2241 root 20 0 14912 2852 2300 S 0 0.3 0:00.05 smbd
2907 root 20 0 3000 1784 1232 S 0 0.2 0:00.74 monitor_enclosu
3504 root 20 0 5832 1644 1320 S 0 0.2 0:00.00 bash
2261 root 20 0 14912 1596 1040 S 0 0.2 0:00.01 smbd
3116 avahi 20 0 2844 1496 1260 S 0 0.1 0:00.04 avahi-daemon
3111 root 20 0 11576 1292 968 S 0 0.1 0:00.01 nmbd
3513 root 20 0 2328 1024 788 R 1 0.1 0:00.59 top
919 root 16 -4 2344 1020 384 S 0 0.1 0:00.53 udevd
2208 root 20 0 3760 976 784 S 0 0.1 0:00.02 cupsd
1896 root 20 0 5460 964 596 S 0 0.1 0:00.00 sshd
3126 root 20 0 2124 916 772 S 0 0.1 0:00.00 chronyd
2215 messageb 20 0 2752 852 672 S 0 0.1 0:00.00 dbus-daemon
2217 root 20 0 1976 816 656 S 0 0.1 0:00.00 cron
1 root 20 0 2068 664 564 S 0 0.1 0:00.66 init
2156 root 20 0 1748 640 528 S 0 0.1 0:00.07 syslogd
1852 root 20 0 1696 548 468 S 0 0.1 0:00.00 acpid
2128 root 20 0 1752 500 396 S 0 0.0 0:00.00 noflushd
3119 root 20 0 1700 496 424 S 0 0.0 0:00.00 getty
3133 root 20 0 6092 400 200 S 0 0.0 0:00.00 kissdx
2188 root 20 0 1700 376 304 S 0 0.0 0:00.04 klogd
2720 root 20 0 1724 372 296 S 0 0.0 0:00.00 ifplugd
2818 root 20 0 1724 372 296 S 0 0.0 0:00.01 ifplugd
2793 root 20 0 1724 368 296 S 0 0.0 0:00.00 ifplugd
2136 daemon 20 0 1812 360 284 S 0 0.0 0:00.00 portmap
2183 daemon 20 0 1956 340 220 S 0 0.0 0:00.00 atd
1858 root 20 0 1688 324 260 S 0 0.0 0:00.00 raidard
2131 root 20 0 2532 124 0 S 0 0.0 0:00.00 quota_nld
2 root 20 0 0 0 0 S 0 0.0 0:00.00 kthreadd
3 root 20 0 0 0 0 S 0 0.0 0:00.00 ksoftirqd/0
4 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/0:0
5 root 20 0 0 0 0 S 0 0.0 0:00.01 kworker/u:0
6 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0
7 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/1
8 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/1:0
9 root 20 0 0 0 0 S 0 0.0 0:00.01 ksoftirqd/1
10 root 20 0 0 0 0 S 0 0.0 0:00.22 kworker/0:1
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