Linux-kernel mailing list archive 1998-48,: Re: NTP dumps Linux, film at 11. [Fwd/FYI]

# Re: NTP dumps Linux, film at 11. [Fwd/FYI]

Kris Karas (ktk@ktk.bidmc.harvard.edu)
Wed, 02 Dec 1998 13:55:47 -0500

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> Something is dropping the I/O performance across multiple controllers badly
> from 2.0 to 2.1. This includes IDE, AHA1542 and Buslogic scsi

Assuming each driver is stable and has acceptably low-latency through the
high-priority interrupt paths, could the problem be due to interaction of back-end
low-priority handlers? Or maybe locking within the generic mid-level substrate
(above the driver layer)?

Kris

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