07-15-2009
FreeBSD 7.2 build kernel benchmarks
Just for fun:
CPU/Speed: 2x AMD Opteron Model 2384 (2.7GHz/512KB) quad core processor
Ram: 4 x2GB ECC DDR2-667 single rank memory
in RAID 0 mode (strip 128KB, Read Caching enabled, Write Caching disabled) with 2 HDD, CPUTYPE=opteron, CFLAGS= -O2 -fno-strict-aliasing -pipe, CXXFLAGS+= -fconserve-space
Quote:
linking kernel.debug
text data bss dec hex filename
7269549 734623 371004 8375176 7fcb88 kernel.debug
objcopy --only-keep-debug kernel.debug kernel.symbols
objcopy --strip-debug --add-gnu-debuglink=kernel.symbols kernel.debug kernel
--------------------------------------------------------------
>>> Kernel build for SUNPAE completed on Tue Jun 30 10:44:44 CDT 2009
--------------------------------------------------------------
205.268u 25.273s 1:01.01 377.8% 6307+1041k 2910+1805io 193pf+0w
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--------------------------------------------------------------
>>> Kernel build... (1 Reply)
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LEARN ABOUT XFREE86
truncate
TRUNCATE(1) User Commands TRUNCATE(1)
NAME
truncate - shrink or extend the size of a file to the specified size
SYNOPSIS
truncate OPTION... FILE...
DESCRIPTION
Shrink or extend the size of each FILE to the specified size
A FILE argument that does not exist is created.
If a FILE is larger than the specified size, the extra data is lost. If a FILE is shorter, it is extended and the extended part (hole)
reads as zero bytes.
Mandatory arguments to long options are mandatory for short options too.
-c, --no-create
do not create any files
-o, --io-blocks
treat SIZE as number of IO blocks instead of bytes
-r, --reference=RFILE
base size on RFILE
-s, --size=SIZE
set or adjust the file size by SIZE bytes
--help display this help and exit
--version
output version information and exit
The SIZE argument is an integer and optional unit (example: 10K is 10*1024). Units are K,M,G,T,P,E,Z,Y (powers of 1024) or KB,MB,... (pow-
ers of 1000).
SIZE may also be prefixed by one of the following modifying characters: '+' extend by, '-' reduce by, '<' at most, '>' at least, '/' round
down to multiple of, '%' round up to multiple of.
AUTHOR
Written by Padraig Brady.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report truncate translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
dd(1), truncate(2), ftruncate(2)
Full documentation at: <http://www.gnu.org/software/coreutils/truncate>
or available locally via: info '(coreutils) truncate invocation'
GNU coreutils 8.28 January 2018 TRUNCATE(1)