Messages in this thread |  | | From | (Harald Koenig) | Subject | Re: MMX for kernel | Date | Fri, 7 Feb 1997 15:06:28 +0100 (MET) |
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> If there were many, many proceses which used the FPU, one could imagine > an advisory bit which meant "when task switching to this process, > immediately restore my FPU registers, since I'm an intensive FPU > user".
wouldn't only 2 FP-intensive (compute) processes be enough for this scenario ?
> This would avoid the hardware fault after each task switch to > that process if there were many processes using the FPU. However, this > hasn't been implemented yet, and in practice it hasn't seemed to have > been a problem.
and what about runnung 2+ FP cmopute jobs on a dual-PPro200 (SMP) machine ? how often do processes switch from one CPU to another needing to save/reload FPU registers and hardware faults ?
any rough estimation how much benefit it might be to add such a flag for FP-bound processes if Linux is only used as "compute server" ?
Harald -- All SCSI disks will from now on ___ _____ be required to send an email notice 0--,| /OOOOOOO\ 24 hours prior to complete hardware failure! <_/ / /OOOOOOOOOOO\ \ \/OOOOOOOOOOOOOOO\ \ OOOOOOOOOOOOOOOOO|// Harald Koenig, \/\/\/\/\/\/\/\/\/ Inst.f.Theoret.Astrophysik // / \\ \ koenig@tat.physik.uni-tuebingen.de ^^^^^ ^^^^^
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