[Pkg-sysvinit-devel] Bug#581907: sysv-rc: performance regression with CONCURRENCY=makefile

Petter Reinholdtsen pere at hungry.com
Mon May 17 05:45:24 UTC 2010

[Felipe Sateler]
> As per [1], I'm reporting this against the sysv-rc package.
> CONCURRENCY=makefile results in a performance hit to my boot
> sequence, both with and without readahead.

Thank you.  I hope we can find the cause of this slowdown.

I notice from bootchart-makefile-readahead.png that there are one
startpar process that seem to run longer than expected.  It is started
from rcS.d/.  This is normally a problem with some daemon failing to
close its file descriptors when it starts.  Can you run 'ps -ef|grep
startpar' to see which process this is?  These should be reported as
separate bugs.  Not sure it affect the boot speed, though.

I notice netagent sleep for 4 seconds during the boot.  Any idea why?

I also notice X.org seem to start earlier when parallel boot is
enabled.  Do you benchmark from the kernel start to the desktop is
ready for use (using autologin) or the login screen is available, or
just to the last init.d script is done?  The sequencial boot chart
seem to ignore the time it take to start X, while it is included in
the parallel boot chart.

Happy hacking,
Petter Reinholdtsen

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