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Hugely annoying CPU usage spikes
03-31-2013, 12:25 PM (This post was last modified: 03-31-2013 07:14 PM by Clavus.)
Post: #1
Hugely annoying CPU usage spikes
The past few months I noticed that my mouse keeps freezing for a splitsecond every few minutes. This is super annoying and ruins my sessions of Battlefield 3 sometimes, since it always freezes my mouse at the most inconvenient moments.

So I opened perfmon.exe (Windows inbuild performance monitor) and started monitoring the various processes I had running during my game. Once the freezes started happening, I noticed Whatpulse's CPU usage spiked. Stopping Whatpulse stopped the freezes from occuring.

The freezes do not seem to coincide with pulse events, they just happen on a regular-ish interval. I tried disabling the upload/download statistics and uninstalled WinPcap but that made no difference, it seems to be an inherent issue with Whatpulse 2.0. This needs to be fixed.

Edit:

I did some more monitoring, and the CPU spikes seem to coincide with a large amount of I/O activity by the Whatpulse process, and take place exactly every 5 minutes.

Edit2:

Judging from the 2.0.4 release notes (http://www.whatpulse.org/blog/106/) I'd say this is the issue:
Quote:[Enhancement] Only use database file every 5 minutes, cache everything else. This brings disk I/O usage to a near standstill.
Everything freezes up once it reads from the database.

Edit3:

Issue seems to be resolved (sort of) in the latest 2.1 beta. There's still a I/O spike every 5 minutes but it doesn't freeze up my computer any more.
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04-26-2013, 04:07 PM
Post: #2
RE: Hugely annoying CPU usage spikes
I just downloaded the current client a couple of days ago and noticed my keyboard and mouse would lag every now and then.. Started noting the times it happened and found out it happens exactly every 5 minutes. I googled "Whatspulse 5 minutes" and found this thread. Appearently the issue isnt resolved yet for some clients/computers? I'm actually thinking of removing whatspulse until this has been fixed, gaming is like impossible this way.
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