Odd delay before control panel, programs start in Windows 7

pirinto · 30 Nov 2011

cluberti said:

Yes, indeed.

Here's another trace. Did the same procedure. disks were defragmented and system rebooted prior to the trace. No other applications were running besides those on startup.

Slow.7z

**cluberti** · 01 Dec 2011

Now it's scanning all kinds of other things on I:\, including WAV files and other large files. It's being done by SuperFetch, but that doesn't mean it's actually responsible (although I would think it actually is). Can you detach the I: drive temporarily to see if the issue goes away? Also, if it doesn't, get another trace with the SuperFetch service disabled (and after you've rebooted, of course).

pirinto · 02 Dec 2011

cluberti said:

Now it's scanning all kinds of other things on I:\, including WAV files and other large files. It's being done by SuperFetch, but that doesn't mean it's actually responsible (although I would think it actually is). Can you detach the I: drive temporarily to see if the issue goes away? Also, if it doesn't, get another trace with the SuperFetch service disabled (and after you've rebooted, of course).

I tried these three scenarios. I still get the same result. Meaning that Firefox and Tbird start after a significant delay.

Here's the tracefile with SuperFetch disabled. I: drive attached
slow3SfetchDisabled
Tracefile with I drive detached and SuperFetch Service disabled
slow4_I_DriveDetached_SFetchOFF
Tracefile with I drive detached and SuperFetch Service enabled
slow5_I_DriveDetached_SFetchON

EDIT: I found a tutorial on how to diagnose DISK I/O with xperf

And also another on general xperf usage but it's less relevant.

I'll start digging into the etl files myself. I'm not sure what i'm looking for though. May I ask you if I get stuck analyzing the files? Thanks