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Mysterious latency in Windows
Hey all, first time poster here :) I'm sorry if this post is in the wrong section, but here goes:
Like the title states, I'm having a problem with latency issues since my last reinstall of Windows 7 (64 bit, Home Premium). When I'm running the DPC Latency Checker program, the values go between 150µs to around 800µs, just idling in Windows. Occasionally, or sometimes all at once, I get some very high latency peaks - from 3000µs up to 17000µs (my highest 'record'). I have some 'extreme' screenshots, where the latency is around 6000µs for more than 30 seconds.
What really bothers me is that applications are slow to start, despite how well the latency meter is in the DPC Latency Checker application.
When I get the peaks, I don't see any increased CPU usage, or anything else for that matter, except in the Network graph in the Resource Monitor. The network usage spikes in the same manner as the Latency Checker program, which seems very strange to me. In the TCP connections graph I see as I write this, almost 100 connections. I had just 6 connections about 5 minutes ago.. And now, 1 minute later, it's back to around 50 - which is still high! Few minutes later it's around 8.
Two strange observations : The problem doesn't go away with the network disabled, though it's better. And I don't feel this problem at all in any game.
I simply can't make any sense of this. I hope there are some clever people out there, who's able to help me :)
Thanks in advance!
Edit: Just checked the connections that are actually running, there seems to be many connections that involve firefox.exe, and AvastSvc.exe. Whatever that means!