I've fiddled with my article cache, enable/disable direct unpack, number of connections and now have added a dedicated SSD as my temp drive.
When I download anything bigger than 12G my speed drops from the limit I have set 50MBs I have set down to 25-35.
Background:
Machine is in a VM with 12G of ram and 8 CPU cores.
The HDD the os and completed files are on are not shared with any other VM.
The SSD the temp folder is on is also not shared with any other VM.
pystone over 100k
temp dir 193.8MB
complete dir 89.2MB
I have 400/20 internet courtesy of Spectrum. With the overprovisioning and QoS on the router it runs real world 425/22.
Any tips or help would be greatly appreciated.
Large Downloads choke speed.
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Check your connection in Status and Interface settings window.
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Re: Large Downloads choke speed.
I ran DSTAT and noticed at about the 13G mark that disk activity goes from writing, to equal parts reading and writing.
IOTOP reports that it is indeed sabnzbd that is doing the writing and reading.
This is with direct unpack turned off FYI.
IOTOP reports that it is indeed sabnzbd that is doing the writing and reading.
This is with direct unpack turned off FYI.
Re: Large Downloads choke speed.
If you lower RAM to 6GB, does that threshold go to about 6GB too ... ?
Re: Large Downloads choke speed.
The NZB you are downloading, does it have 1 single file in it or separate RAR files? You can see this by clicking on the folder-icon next to the job name when you hover over the job name.
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Re: Large Downloads choke speed.
YEsterdays file had large files.
Trying right now with a 50G nzb full of 375 meg rars.
Will try adjusting RAM if this show same behavior.
Trying right now with a 50G nzb full of 375 meg rars.
Will try adjusting RAM if this show same behavior.
Re: Large Downloads choke speed.
Ok...
Large NZB containing large files. Ends up doing reads and writes while downloading. - Kills Speed
Large NZB containing small files. Doesn't end up doing reads and writes. - Speed Maintains.
Large NZB containing large files. Ends up doing reads and writes while downloading. - Kills Speed
Large NZB containing small files. Doesn't end up doing reads and writes. - Speed Maintains.
Re: Large Downloads choke speed.
Yes this makes sense, because SABnzbd only writes the file when it has the whole file. When the cache is full it will write the rest to the disk -> slow.
This is a design-flaw that I will fix in SABnzbd 3.x.x version.
This is a design-flaw that I will fix in SABnzbd 3.x.x version.
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Re: Large Downloads choke speed.
Thanks for the help and the update.