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Top Forums Programming HELP!!: CPU resource allocation between kernel modules and user mode process Post 302511402 by neyshule on Wednesday 6th of April 2011 05:48:29 PM
Old 04-06-2011
HELP!!: CPU resource allocation between kernel modules and user mode process

Hi,all:
I run my program which consists of one kernel module and one user mode process on a dual core server. The problem here is the kernel module consumes 100% of one core while the user mode process only consumes 10% of the other core, is there any solution that I can assign some computing power from the user-mode core to the kernel-mode core, is there any allocation scheme? I knew linux seems to have some system call to allocate CPU between different processes, but not with kernel module.
Thanks very much to reply.
 

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CRASHINFO(8)						    BSD System Manager's Manual 					      CRASHINFO(8)

NAME
crashinfo -- analyze a core dump of the operating system SYNOPSIS
crashinfo [-d crashdir] [-n dumpnr] [-k kernel] [core] DESCRIPTION
The crashinfo utility analyzes a core dump saved by savecore(8). It generates a text file containing the analysis in the same directory as the core dump. For a given core dump file named vmcore.XX the generated text file will be named core.txt.XX. By default, crashinfo analyzes the most recent core dump in the core dump directory. A specific core dump may be specified via either the core or dumpnr arguments. Once crashinfo has located a core dump, it analyzes the core dump to determine the exact version of the kernel that generated the core. It then looks for a matching kernel file under each of the subdirectories in /boot. The location of the kernel file can also be explicitly provided via the kernel argument. Once crashinfo has located a core dump and kernel, it uses several utilities to analyze the core including dmesg(8), fstat(1), iostat(8), ipcs(1), kgdb(1), netstat(1), nfsstat(1), ps(1), pstat(8), and vmstat(8). The options are as follows: -d crashdir Specify an alternate core dump directory. The default crash dump directory is /var/crash. -n dumpnr Use the core dump saved in vmcore.dumpnr instead of the latest core in the core dump directory. -k kernel Specify an explicit kernel file. SEE ALSO
textdump(4), savecore(8) HISTORY
The crashinfo utility appeared in FreeBSD 6.4. BSD
June 28, 2008 BSD
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