Messages in this thread |  | | Date | Tue, 12 Sep 2000 18:18:22 -0600 | From | "Jeff V. Merkey" <> | Subject | Re: elevator code |
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Martin,
I'm glad you are not still mad at me. :-) I hope this info was helpful.
:-)
Jeff
Martin Dalecki wrote: > > "Jeff V. Merkey" wrote: > > > lessons learned in live customer accounts. In NetWare, requests are > > merged at A) the boundry between the File Cache and the I/O subsystem, > > and B) in the drivers themselves and NOT THE ELEVATOR. > > Yes that's the proper place to do this. The generic elevator on a > *single* queue > makes not much sense. Once ago I have just disabled it entierly and on a > system with swap on a separate disk and controller this was a > performance *win*. > > Some of the FS code in esp. the ISO9660 does even under linux something > *very* > much like this. Many of the prop. cd-rom device drivers are basically > emulating 512k block devices by reading ahead and throwing away data. > There is really plenty of room for improvement here. > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > Please read the FAQ at http://www.tux.org/lkml/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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