 | | | Scheduling problems on RHES3 2.4.21-27.0.1.EL | Scheduling problems on RHES3 2.4.21-27.0.1.EL 2005-02-04 - By thomas.schuetzkowski@(protected)
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Hi all,
i have an application running, that receives data via network sockets and
collects data via ftp (this is
also only socket communication). The data collection is done by different
threads. When i put a large
file on the ftp server, the application stops receiving data via the other
sockets, until the ftp thread has
downloaded the complete large file. This could take several minutes, where the
other threads are ready
to run, but don't get scheduled.
On RH 8.0 (kernel-2.4.20-28.8) the application works without problems.
After that, i tried to run the test_starve program from
http://www.hpl.hp.com/research/linux/kernel/o1-starve.php
and, ... it starves.
On original RH8.0 the test_starve also starved, but that was fixed with an
kernel update (2.4.20-24 i think)
Why is the same bug included in an expensive mission critical linux
distribution like RHES, that was
delivered long after the bug had been fixed in the cheap nonprofessional
releases of RH (like RH 8.0)?
But that's not the question, at the moment the question is:
Is there's anyone else experiencing problems with the process- and/or I/O
-scheduler on RHES3?
Thanks for any hints,
Thomas
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