Suddenly very slow download speed

[sander]

Code: Select all

2016-02-14 22:59:41,125::DEBUG::[SABnzbd:1284] CPU Pystone available performance is 25000
2016-02-14 22:59:41,125::DEBUG::[SABnzbd:1289] CPU model name is Intel(R) Celeron(R) CPU  J1900  @ 1.99GHz

25000? That is quite low. You won't high get download speeds with that. It could very well be that 9MB/s = 90 Mbps is the max you can get with SABnzbd on the hardware.
(and, yes, it's annoying that we don't know a measurement to find the bottleneck)

See https://www.cpubenchmark.net/cpu.php?cp ... 40+1.99GHz how your Celeron J1900 compares to other CPU's.

What does your laptop say? If it has an Intel Core, it's probably at least 4-6 times faster, so a Pystone of 100.000+. Please post the same two SAB's CPU lines ... I'm really interested.

[sander]

I booted up my old netbook:

Code: Select all

2016-02-15 20:51:48,450::DEBUG::[sabnzbdplus:1285] CPU Pystone available performance is 25009
2016-02-15 20:51:48,451::DEBUG::[sabnzbdplus:1290] CPU model name is Intel(R) Atom(TM) CPU N270   @ 1.60GHz

... so same CPU Pystone as you: 25000.

A download results in a 6.8 MB/s download

Code: Select all

2016-02-15 20:54:16,383::DEBUG::[bpsmeter:271] bps: 6506644.74381
2016-02-15 20:54:21,383::DEBUG::[bpsmeter:271] bps: 6731327.74764
2016-02-15 20:54:26,388::DEBUG::[bpsmeter:271] bps: 6765628.63645
2016-02-15 20:54:31,388::DEBUG::[bpsmeter:271] bps: 6854759.02489

So that looks the max for my system.

And it looks like 'top' is useful: still idle CPU percentage, but sabnzbdplus is at 99 %CPU.
(FWIW: start 'top', press '1' to see the load per CPU-Core)

Code: Select all

sander@netbook:~$ top

top - 20:42:41 up 2 min,  2 users,  load average: 1.80, 1.24, 0.50
Tasks: 161 total,   2 running, 159 sleeping,   0 stopped,   0 zombie
top - 20:53:46 up 13 min,  4 users,  load average: 1.43, 1.32, 0.95
Tasks: 164 total,   1 running, 163 sleeping,   0 stopped,   0 zombie
%Cpu0  : 37.8 us, 12.5 sy,  0.0 ni, 25.3 id,  0.0 wa,  0.3 hi, 24.0 si,  0.0 st
%Cpu1  : 35.0 us, 14.5 sy,  0.0 ni, 47.9 id,  0.0 wa,  0.0 hi,  2.6 si,  0.0 st
KiB Mem:   1014908 total,  1001616 used,    13292 free,    24212 buffers
KiB Swap:  2265128 total,        0 used,  2265128 free.   646632 cached Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                                                    
 3400 sander    20   0  428080 171576  11660 S  99.0 16.9   2:04.70 sabnzbdplus