Bonnie benchmarking tool.

Submitted by:	se

1 files changed, 97 insertions, 0 deletions

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