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As the title already says, my Windows 8.1 installation take quite some time to boot (without FastBoot).
I managed to record an etl file of the boot process. The result is a very large file: 4.5GB, compressed: 250MB
When viewing this file in the Windows Performance Analyzer, I see that of the 144s boot time, about 120s are spent in "Session Init" phase and for about 90s of that time it is basically doing nothing, with smss.exe using full cpu on one core, and nearly no I/O happening.
Can you recommend a way to analyze the situation?
upload the compressed file, I'll take a look at it. – magicandre1981 – 2013-11-29T17:51:38.837
link – Tobias – 2013-11-29T21:14:55.530
you have not captured the correct data. Run this command: xbootmgr -trace boot -traceFlags BASE+LATENCY+DISK_IO_INIT+DISPATCHER+FILE_IO+FILE_IO_INIT+POWER+FILENAME -stackwalk profile+CSwitch+ReadyThread -resultPath C:\TEMP (this is one line! Copy it into a text file first to make sure it is one line) – magicandre1981 – 2013-11-30T06:39:23.797
link – Tobias – 2013-11-30T11:04:31.420
the stacks are still missing. Make sure the entry DisablePagingExecutive is set to 1 in the Registry (HKLM\System\CurrentControlSet\Control\Session Manager\Memory Management). – magicandre1981 – 2013-11-30T14:13:58.750
http://sdrv.ms/1ahQcmJ – Tobias – 2013-11-30T15:31:13.460
still the same issue, the stacks are missing. Have you rebooted after making the change? Also post a picture of the registry key. – magicandre1981 – 2013-11-30T15:46:11.650
I set the registry value, then executed the command to record the trace -> which triggers a reboot. http://i.imgur.com/7mUaQXN.png
– Tobias – 2013-11-30T16:30:48.810do a reboot before running the command. – magicandre1981 – 2013-11-30T16:32:55.163
http://sdrv.ms/18Q6Duq – Tobias – 2013-11-30T17:36:43.303
still the same. Which WPT version do you use? You MUST use the version from the Windows 8.1 SDK, not older version: http://msdn.microsoft.com/en-US/windows/desktop/bg162891
– magicandre1981 – 2013-11-30T18:57:53.377http://sdrv.ms/1c3QZbZ – Tobias – 2013-11-30T22:32:43.793