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98 lines
3.1 KiB
Plaintext
98 lines
3.1 KiB
Plaintext
diff -C2 Makefile~ Makefile
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*** Makefile~ Wed Aug 21 17:19:11 1991
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--- Makefile Thu May 18 20:27:19 1995
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***************
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*** 1,7 ****
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! CC = cc
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! CFLAGS = -O2
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! all: Bonnie
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!
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! Bonnie:
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--- 1,10 ----
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+ all: bonnie
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! bonnie:
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! $(CC) $(CFLAGS) -static -o bonnie Bonnie.c
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! install:
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! -@mkdir -p ${PREFIX}/bin
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! -@mkdir -p ${PREFIX}/man/man1
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! ${INSTALL} ${COPY} ${STRIP} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} bonnie ${PREFIX}/bin
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! ${INSTALL} ${COPY} -o ${BINOWN} -g ${BINGRP} -m 644 bonnie.1 ${PREFIX}/man/man1
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diff -C2 /dev/null bonnie.1
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*** /dev/null Thu May 18 20:25:21 1995
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--- bonnie.1 Thu May 18 20:26:47 1995
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***************
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*** 0 ****
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--- 1,68 ----
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+ .\" The following requests are required for all man pages.
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+ .Dd May 18, 1995
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+ .Os UNIX
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+ .Dt BONNIE 1
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+ .Sh NAME
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+ .Nm bonnie
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+ .Nd Performance Test of Filesystem I/O
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+ .Sh SYNOPSIS
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+ .Nm bonnie
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+ .Op Fl d Ar scratch-dir
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+ .Op Fl s Ar size-in-MB
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+ .Op Fl m Ar machine-label
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+
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+ .Sh DESCRIPTION
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+ .Nm Bonnie
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+ tests the speed of file I/O from standard C library calls.
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+ It reads and writes 8KB blocks to find the maximum sustained
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+ data rate (usually limited by the drive or controller) and additionally
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+ rewrites the file (better simulating normal operating conditions and
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+ quite dependent on drive and OS optimisations).
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+
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+ The per character read and write tests are generally limited by CPU speed
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+ only on current generation hardware. It takes some 35 SPECint92 to read
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+ or write a file at a rate of 1MB/s using getc() and putc().
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+
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+ The seek test results depend on the buffer cache size, since the fraction
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+ of disk blocks that fits into the buffer cache will be found without any
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+ disk operation and will contribute zero seek time samples.
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+ (See
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+ .Sx BUGS
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+ below.)
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+
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+ .Sh OPTIONS
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+ .Bl -tag -width indent
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+ .It Fl d Ar scratch-dir
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+ Specify the directory where the test file gets written. The default
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+ is the current directory. Make sure there is sufficient free space
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+ available on the partition this directory resides in.
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+ .It Fl s Ar size-in-MB
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+ Specify the size of the test file in MByte. This much space must be
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+ available for the tests to complete.
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+ .It Fl m Ar machine-label
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+ Specify a label to be written in the first column of the result table.
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+ .El
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+
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+ .Sh SEE ALSO
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+ .Xr iozone 1 ,
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+ .Xr iostat 8
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+
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+ .Sh AUTHOR
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+ .Nm Bonnie
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+ was written by Tim Bray <tbray@watsol.waterloo.edu>.
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+
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+ .Sh BUGS
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+ .Nm Bonnie
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+ tries hard to measure disk performance and not the quality of the
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+ buffer cache implementation. In merged buffer caches common today,
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+ the buffer cache size is often only limited by total RAM on an otherwise
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+ unloaded system. Be sure to use a file at least twice at large as
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+ available RAM to protect against artificially high results.
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+
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+ There is no way to keep the buffer cache from increasing the reported
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+ seek rate. This is because the fraction of accesses corresponding to the
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+ amount of the file cached, will be done without seeks.
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+ If your buffer cache is half the size of the file used, then half the
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+ requests will be satisfied immediately, and and the seek rate printed
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+ will be twice the actual value.
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+
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