Posted by Gilles Chanteperdrix on January 25, 2011 - 14:27: >Well, no. dd if=/dev/zero of=/dev/null is far from being a proper load. >What you should do is at least to create some disk and network activity, >continuously. And the ideal, is to run the LTP test in parallel. If you >can not, then at least run hackbench in a loop. All this during several >hours.
Ok. I run LTP test and latency test in parallel for about 15 hours continuously. I have this result at the end: RTD| 6.182| 7.627| 47.662| 0| 0| 15:04:32/15:04:32 I also run hackbench in a loop (with 100 groups) for about 14 hours and I obtain: RTD| 6.100| 8.341| 21.727| 0| 0| 13:39:24/13:39:24 >We add ids to the smi.c table when people send patches, and report that >the workaround... works. Anyway, if you suspect that the ICH workaround >does not work with SCH chipsets, you should have a look at the SCH >chipsets datasheet, to check whether the method for disabling SMIs is >the same. I'll try to check this and I'll inform you if I succeed in disabling SMIs on SCH. >In facts, same test (only without file transfer) under another system with >1GHz Intel Atom on a SCH (Poulsbo) chipset (not supported by Xenomai to >disable SMIs) reports these results: > >RTD| 11.353| 13.808| 31.264| 3| 0| 2.934| 231.539 >What I do not understand, in on which system you get the issue with your >test application. If you want to know if the system on which you run the >test has an isssue, then surely you should test this system, not another... Yes, I run test on this Atom system only to have results from another machine to compare with results from my develop host. I'm testing only my develop host, for ease I synthetize again its features: Intel Celeron M 600MHz 512MB ram ICH4 chipset (Xenomai's SMI workaround applied) Ubuntu 10.04 with compiled kernel 2.6.35.7 Xenomai 2.5.5.2 Adeos patch 2.7-04 Thank you! Mauro
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