Performance Hit With Many Files


 
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Special Forums Hardware Filesystems, Disks and Memory Performance Hit With Many Files
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Old 03-06-2009
We were not talking of 100 files but files by 10'000's...
Quote:
You'll be amazed to see how linearly the number of files created/second drops over time as well as how things periodically slow down but are not visible when only looking at second-level samples.
Doesnt that remind you about CPU scheduling priority in time?

Last edited by vbe; 03-06-2009 at 12:46 PM.. Reason: minor correction...
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xchkdmp(8)					       JFS utility - dump fsck.jfs log file						xchkdmp(8)

NAME
xchkdmp - dump the contents of a JFS fsck log file created with xchklog SYNOPSIS
xchkdmp [ -f input.file ] [ -V ] DESCRIPTION
xchkdmp dumps the contents of a JFS fsck log file that was created by JFS utility xchklog. If no input file is specified, the default path and file name (<pwd>fscklog.new) is used. The output is written to standard out. OPTIONS
-f input.file Specifies the input file name and path. input.file must be 127 characters or less in length. input.file will be read from the present working directory unless it is fully qualified. -V Print version information and exit (regardless of any other chosen options). EXAMPLES
Dump the contents of the fsck service log in <pwd>fscklog.new: xchkdmp Dump the contents of the fsck service log in /temp/l9651107.log: xchkdmp -f /temp/l9651107.log REPORTING BUGS
If you find a bug in JFS or xchkdmp , please report it via the bug tracking system ("Report Bugs" section) of the JFS project web site: http://oss.software.ibm.com/jfs Please send as much pertinent information as possible, including any xchkdmp error messages and the complete output of running fsck.jfs with the -v option on the JFS device. SEE ALSO
xchklog(8), mkfs.jfs(8), fsck.jfs(8), logdump(8), logredo(8), xpeek(8) AUTHOR
Barry Arndt (barndt@us.ibm.com) xchkdmp is maintained by IBM. See the JFS project web site for more details: http://oss.software.ibm.com/jfs January 11, 2001 xchkdmp(8)