From owner-FreeBSD-users-jp@jp.freebsd.org  Thu Nov 28 18:20:42 1996
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Date: Thu, 28 Nov 1996 18:20:40 +0900
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From: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>
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$B2<@n!wElBg$G$9!%(B

hirano> > simokawa@odin[2]:~> df -k /dev/ccd0c
hirano> > Filesystem         1024-blocks  Used Available Capacity Mounted on
hirano> > /dev/ccd0c           16396391   82478  15002202      1%   /export/ccd
hirano> > 
hirano> > $B$J$s$F$b$N=P$F$-$^$7$?!%(B
hirano> 
hirano> $B!!(B16GB$B$G$9$+$!!D(B    (O.o;
hirano> 
hirano> $B!!(Bccd$B$H$$$&$3$H$O!"J#?t$N%Q!<%F%#%7%g%s$rO"7k$7$F!"0l$D$K8+$;$F$$$k$N(B
hirano> $B$G$9$h$M!);H$$>!<j$d0BDj@-$J$I$O$$$+$,$G$7$g$&$+!)(B

$B$=$l$[$I;H$$$3$s$G$J$$$N$G!$0BDj@-$r$I$&$3$&8@$($kN)>l$G$O$J$$$N$G$9$,!$(B
$BK\2H$N(BML$BEy$r8+$k8B$j$G$O!$(Bccd$B$K$h$C$F(Bcrash$B$7$?$H$+$$$&$O$J$7$O(B
$BJ9$-$^$;$s$M$'!%(B

$B$3$A$i$G;H$C$F$$$k$N$O!$(B

CPU: Pentium 200MHz
Mother Board: ASUS P/I-P55T2P4 (Triton II) PB Cache 512K
RAM: EDO 128MB
SCSI: Adaptec 3940U  -- Ultra SCSI 2 Channel
HD: IBM DORS-32160 WA6A (Ultra SCSI 2.1GB) * 8 $BBf(B

$B%1!<%9$O(BDOS/V$B%Q%i%@%$%9$GNI$/8+$+$1$k(BAcer$B$N%5!<%P%1!<%9$G!$(B
$B$=$s$J$K9b$/$J$/$F!$(B8$BBfF~$k$7!$C&Ce$b3Z$J$N$G$9$,!$(B
$BLdBj$O!$Gc$&A0$+$iJ,$C$F$$$?$N$G$9$,!$(B3+3+2 $B$H$7$+(Bchannel$B$,J,$l$J$$$3(B
$B$H$G!$(B4+4$B$K$G$-$^$;$s!%(B
$B$$$^$O(B 3+5$B$G;H$C$F$$$^$9!%CN$i$J$+$C$?LdBj$O(B"$B%^%K%e%"%k$,$J$$(B"$B$=$&$G(B
dip switch$B$G(Bchannel$B$rJ,$1$?$j!$(Btermination$B$7$?$j$9$k$N$G$9$,!$(B
$B$=$l$,$5$C$Q$j$o$+$i$:!$$*$^$1$K(B2.2-ALPHA$B$N(Bahc driver$B$N(Btrouble$B$N$?$a$K(B
$B$&$^$/F0$+$9$^$G!$0lHU$+$+$j$^$7$?!%(B

$B$H$$$&$o$1$G!$(BSCSI BUS 1$B$K(B5$BBf!$(BBUS 2$B$K(B3$BBf$D$J$,$C$?>uBV$G!$(B
max$B$N(Bperformance$B$r8+$k$?$a$K!$(B8$BBf$G(Bstriping$B$7$F$$$^$9!%(B
interleave factor$B$O(B16$B$K$7$F$$$^$9!%(B

iozone auto $B$N7k2L(B
IOZONE: auto-test mode 

        MB      reclen  bytes/sec written   bytes/sec read      
        1       512     7895160             19173961            
        1       1024    10324440            33554432            
        1       2048    12201611            33554432            
        1       4096    14913080            33554432            
        1       8192    14913080            33554432            
        2       512     8659208             19173961            
        2       1024    11671106            29826161            
        2       2048    14128181            33554432            
        2       4096    15790320            38347922            
        2       8192    15790320            44739242            
        4       512     9099506             19884107            
        4       1024    11930464            26843545            
        4       2048    14913080            31580641            
        4       4096    16777216            38347922            
        4       8192    17895697            35791394            
        8       512     9256395             17895697            
        8       1024    12341860            23860929            
        8       2048    14913080            29020049            
        8       4096    16777216            31580641            
        8       8192    19173961            37025580            
        16      512     9061112             17895697            
        16      1024    12201611            23860929            
        16      2048    15017368            28256363            
        16      4096    17043521            31122951            
        16      8192    19522578            33038209            

$B$H$j$"$($:!$(Bread$B$O(Bcache$B$,8z$-$^$/$C$F$$$k$N$G!$(B
1GB $B$N(B read/write $B$r$7$F$_$k$H!$(B

simokawa@odin[11]:simokawa> iozone 1024 65536

        IOZONE: Performance Test of Sequential File I/O  --  V2.01 (10/21/94)
                By Bill Norcott

        Operating System: FreeBSD 2.x -- using fsync()

        Send comments to:       b_norcott@xway.com

        IOZONE writes a 1024 Megabyte sequential file consisting of
        16384 records which are each 65536 bytes in length.
        It then reads the file.  It prints the bytes-per-second
        rate at which the computer can read and write files.


Writing the 1024 Megabyte file, 'iozone.tmp'...60.406250 seconds
Reading the file...50.585938 seconds

IOZONE performance measurements:
        17775343 bytes/second for writing the file
        21226093 bytes/second for reading the file

$B$H$$$C$?46$8$G!$(Bread $B$G(B20MB/s$B$0$i$$$G$9$M!%(BSCSI bus$B$N(Bcapacity$B$d(B
memory$B$N(Bbandwidth$B$r9M$($k$H!$(B30MB/s$B6a$/$$$C$F$[$7$$$H$3$m$G$9$,!%!%(B

/\ Hidetoshi Shimokawa
\/  simokawa@sat.t.u-tokyo.ac.jp
PGP public key: finger -l simokawa@sat.t.u-tokyo.ac.jp
