Messages in this thread |  | | Date | Tue, 2 Jul 1996 14:26:55 +0200 | From | Uwe Bonnes <> | Subject | Fast random generator was: Re: Ideas for v2.1 |
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Hallo,
as I have problems with bad blocks on a harddisk, I find it usefull to write random data to the disk to probe that. However the speed of /dev/urandom doesn't match the write speed of modern harddisks at all: elektron:/mnt1/home> time dd if=/dev/urandom of=/dev/null bs=1k count=1k 1024+0 records in 1024+0 records out 0.000u 4.040s 0:04.08 99.0% 0+0k 0+0io 42pf+0w That's about 250 kByte/sec. This is with a Pentium 100
So I would like to see a fast (possibly much mor predictable) random generator device (/dev/fandom), running with perhaps 5 MBytes/sec or better above. Is that feasable? -- Uwe Bonnes bon@elektron.ikp.physik.th-darmstadt.de
Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt --------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
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