Oracle Recommended Kernel Parameter settings for HP Itanium v3 11.31
Siebel Performance Tuning Guide > Tuning Operating Systems for Performance > Tuning Siebel Business Applications for HP-UX > Tuning Kernel Settings for HP-UX -- http://download.oracle.com/docs/cd/E14004_01/books/PerformTun/PerformTunOS11.html#wp1243470 Modify the HP-UX kernel parameters to values like those shown below (suggested guidelines). Use the HP-UX System Administration Manager (SAM) tool to make these changes. nproc 4096 - 4096 ksi_alloc_max 32768 - (NPROC*8) max_thread_proc 4096 - 4096 maxdsiz 0x90000000 - 0X90000000 maxdsiz_64bit 2147483648 - 2147483648 maxfiles 4000 - 4000 maxssiz 401604608 - 401604608 maxssiz_64bit 1073741824 - 1073741824 maxtsiz 0x40000000 - 0X40000000 maxusers 128 - 128 msgmap 4098 - (NPROC+2) msgmni 4096 - (NPROC) msgtql 4096 - (NPROC) ncallout 8000 - 8000 nclist 2148 - (100+16*MAXUSERS) ncsize 35840 - (8*NPROC+2048+VX_NCSIZE) nfile 67584 - (16*NPROC+2048) ninode 34816 - (8*NPROC+2048) nkthread 7184 - (((NPROC*7)/4)+16) nproc 4096 - 4096 nsysmap 8192 - ((NPROC)>800?2*(NPROC):800) nsysmap64 8192 - ((NPROC)>800?2*(NPROC):800) semmap 1026 - 1026 semmni 1024 - 1024 semmns 16384 - ((NPROC*2)*2) semmnu 2048 - 2048 semume 256 - 256 shmmax 0x40000000 Y 0X40000000 shmmni 1024 - 1024 shmseg 1024 Y 1024 vps_ceiling 64 - 64 ------------------------------------------------------------------ maxusers nclist ncsize nfile semmap semmnu semume This short note is to let you know that I started a new thread in the support-engineering forum on the topic you raised. For the record, in my initial research, I found that only 4 of the 8 Kernel parameters you specified have been rendered obsolete. nfile maximum number of open files (system-wide) http://docs.hp.com/en/B2355-60105/nfile.5.html nfile is obsolete -- http://docs.hp.com/en/B2355-60130/nfile.5.html nsysmap number of entries in a kernel dynamic memory allocation map http://docs.hp.com/en/B2355-60105/nsysmap.5.html nsysmap is obsolete -- http://docs.hp.com/en/B2355-60130/nsysmap.5.html nsysmap64 number of entries in a kernel dynamic memory allocation map http://docs.hp.com/en/B2355-60105/nsysmap.5.html nsysmap64 is obsolete -- http://docs.hp.com/en/B2355-60130/nsysmap.5.html semmap "specifies the size of the free-space resource map used for allocating new System V IPC semaphores in shared memory." http://docs.hp.com/en/939/KCParms/KCparam.SemMap.html semmap is obsolete -- 'HP-UX 11i Version 2 December 2007 Release Notes Operating Environments Update Release ' System-V IPC Kernel Tunable Parameter (semmap)(Obsolete): The memory allocation of semaphore sets previously controlled by semmap is now done dynamically by the kernel. The semmap kernel parameter is no longer tunable nclist number of cblocks for pty and tty data transfers http://docs.hp.com/en/939/KCParms/KCparam.Ncallout.html nclist is not obsolete -- http://docs.hp.com/en/B2355-60130/nclist.5.html ncsize number of Directory Name Lookup Cache (DNLC) entries http://docs.hp.com/en/B2355-60105/ncsize.5.html ncsize is not obsolete -- http://docs.hp.com/en/B2355-60130/ncsize.5.html semmnu maximum number of System V IPC undo structures for processes http://docs.hp.com/en/B2355-60105/semmnu.5.html semmnu is not obsolete -- http://docs.hp.com/en/B2355-60130/semmnu.5.html semume maximum number of System V IPC undo entries per process http://docs.hp.com/en/B3921-90010/semume.5.html semume is not obsolete-- http://docs.hp.com/en/B2355-60130/semume.5.html According to HP, the file table, system memory map, and semaphore map are all dynamically sized in the 11iv3 kernel, so tunables specifying maximum size are no longer relevant. That Oracle's document still contains recommendations for "nfile", is mostly due to the Feb 2007 initial release of 11iv3, which had a VERY POOR implementation of the file table structures. Please note this has now been fixed. As HP-UX 11iv3 has also finally implemented man pages for all the kernel tunables (or at least most of them) , this should be considered a good starting point for further exploration on the options available.
Rule | Description | Result | Action |
---|---|---|---|
A00170 | This rule verifies that the kernel parameters are set according to theOracle Database Installation Guide 10g Release 2 (10.2) for HP-UX. | SHMMAX=137438953472 too small |
The kernel parameters are not set according to the |
本文转自maclean_007 51CTO博客,原文链接:http://blog.51cto.com/maclean/1277680