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Message-ID: | <41c73a4d$0$176$cc7c7865@news.luth.se> |
From: | Martin Str|mberg <ams AT speedy DOT ludd DOT ltu DOT se> |
Subject: | Re: DMA and PIO (was Re: Problems with timer interrupt chaining and SmartDrv) |
Newsgroups: | comp.os.msdos.djgpp |
References: | <01c4e368$Blat.v2.2.2$592f6a00 AT zahav DOT net DOT il> <41c5fcca DOT sandmann AT clio DOT rice DOT edu> <01c4e6ce$Blat.v2.2.2$be0d2340 AT zahav DOT net DOT il> |
User-Agent: | tin/1.4.6-20020816 ("Aerials") (UNIX) (NetBSD/1.6Q (alpha)) |
Date: | 20 Dec 2004 20:47:09 GMT |
Lines: | 14 |
NNTP-Posting-Host: | speedy.ludd.ltu.se |
X-Trace: | 1103575629 news.luth.se 176 130.240.16.13 |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
Eli Zaretskii <eliz AT gnu DOT org> wrote: >> From: Charles Sandmann <sandmann AT clio DOT rice DOT edu> >> Try this test. Open task manager so you can monitor CPU usage. Using the >> default DMA, read a 500MB file from disk. Using a modern disk this should >> take less than 10 seconds and use no more than 2-3 percent of the CPU. > What program does one use to read a file, but otherwise do nothing? "cat file >/dev/null"? Right, MartinS
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