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World Community Grid Forums
Category: Completed Research
Forum: Uncovering Genome Mysteries
Thread: Poor efficiency for UGM tasks [RESOLVED] |
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Thread Status: Active Total posts in this thread: 4
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SekeRob
Master Cruncher Joined: Jan 7, 2013 Post Count: 2741 Status: Offline |
Since about batch 27240 I'm seeing substantial drop in efficiency for these tasks on one machine, and now see it on a second machine too... just UGM, AND not all UGM. It's as bad as 75%, where tasks for HST, Zika, OET continue to run above 90, possibly affected by something in UGM as normally the efficiency is above 98% for all.
----------------------------------------Windows 64 bit. AV excluded from scanning BOINC data dir, no other processes appearing to eat time. Edit: Windows 10 poor networking performance while logged in was the root cause of the issue. Sign Out and 99.8% efficiency achieved. [Edit 1 times, last edit by SekeRob* at Aug 26, 2016 2:46:24 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I'm currently running 214 UGM work units with all machines being LINUX except 1 which is Windows 7 64 bit. All are running 99% or above. Current active batches are 27261 to 27265. If it is something Windows related, I may not see it with just one machine but right now my Windows 7 units are running at 99%
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SekeRob
Master Cruncher Joined: Jan 7, 2013 Post Count: 2741 Status: Offline |
Stared at UGM processes [Process Explorer] and anything else untoward, but all is normal. The second machine now runs 6 HST and 2 UGM, batch 27242 and are back in the 98+ efficiency, the other 8 concurrent UGM is barely doing 83. Defragging, and regclean and boot, but no improvement. Checkpoint 'at most' 10 minute intervals, so write load isn't the issue. PF Delta's small. Sorting processes by cumulative CPU time, nothing non-BOINC stands out. At a loss.
----------------------------------------[Edit 1 times, last edit by SekeRob* at Aug 19, 2016 8:11:01 AM] |
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SekeRob
Master Cruncher Joined: Jan 7, 2013 Post Count: 2741 Status: Offline |
'Think' I've found it... broken Windows 10 Homegroup and Shares networking aka LAN issues. This perpetual trying to re-establish the connections was sucking loads of juice via what looks like wmiprvse.exe (Windows Instrumentation Service which is owned by the Network Service user)... at least now see newly started UGM running with ever increasing efficiency. Why it is/was affecting UGM more than the other sciences is a riddle... something this specialized string comparing routine does could be competing for a particular resource.
----------------------------------------Will mark this thread as resolved when hitting 98+ again.  Edit: Still no 98+ but its better than 75 or 85. The link to the instructions for completeness: http://betanews.com/2016/08/10/slower-internet-windows-10-anniversary-update/ [Edit 1 times, last edit by SekeRob* at Aug 20, 2016 4:51:10 PM] |
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