Date: Sun, 03 Jan 1999 20:46:17 +0100 From: Thierry Herbelot <herbelot@cybercable.fr> To: current@FreeBSD.ORG Subject: Is my /dev/random broken ? Message-ID: <368FC908.1D728596@cybercable.fr>
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Hello,
This is a follow-on to a post by Kris Kennaway (Re pgcc-1.1.1).
I have a recent -Current (cvsupped on Dec 19 13:01) with an a.out kernel
and an elf userland and I have tried to duplicate Kris' test :
# dd if=/dev/random of=/usr2/bigfile bs=1024k count=30
# cp /usr2/bigfile /usr2/bigfile2
# /usr/bin/time gzip-486 -9 /usr2/bigfile
26.06 real 20.46 user 1.17 sys
# /usr/bin/time gzip-pent -9 /usr2/bigfile2
23.12 real 18.58 user 1.20 sys
But the first line gives the following :
#dd if=/dev/random of=bigfile bs=1024k count=30
0+2 records in
0+2 records out
6 bytes transferred in 0.000387 secs (15506 bytes/sec)
#
repeated executions give **random** numbers of "bytes transferred" (but
never the right number)
dd seems to work (I have used it to copy parts of the Generic kernel),
so /dev/random must be broken ???
I could live without /dev/random, but what next ?
TfH
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