Added 4 additional CPUs, now what

Hello All, We are trying to sqeeze just a little more value out of our oldest DB server. We just added 4 more processors to our HP 9000 T500 system(total of 8 now). What to I need to tune besides NUMCPUVPS? I set it to 8. I don't think I can use affinity on this version of HP/Informix. This is a dedicated DSS type DB server without applications running locally. We currently run with the attached onconfig during user query time and during data loads which happen on the weekend. How would I tune two different onconfigs, one appropriate for each task? Any suggestions appreciated, even if they are not related to the additional CPUs. TIA, Jeff HW: HP9000 T500 w/ 8 processors 768mb RAM ~125 old, old, unreliable, die every other week, singleton 2 gb disks SW: HP-UX 10.20 IDS 7.22.UC1 INFORMIX-OnLine Version 7.22.UC1 -- On-Line -- Up 00:02:27 -- 482712 Kbytes Configuration File: /usr/informix/etc/onconfig.scandata #************************************************************************** # # INFORMIX SOFTWARE, INC. # # Title: onconfig.std # Description: INFORMIX-OnLine Configuration Parameters # #************************************************************************** # Temporary parameter to compensate for crashed disk. 9/10/96 DATASKIP off # Root Dbspace Configuration ROOTNAME rootdbs # Root dbspace name ROOTPATH /dev/infx/sc020_09 # Path for device containing rootdbspace ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes) ROOTSIZE 250000 # Size of root dbspace (Kbytes) # Disk Mirroring Configuration Parameters MIRROR 0 # Mirroring flag (Yes = 1, No = 0) MIRRORPATH # Path for device containing mirroredroot MIRROROFFSET 0 # Offset into mirrored device (Kbytes) # Physical Log Configuration PHYSDBS plog # Location (dbspace) of physical log PHYSFILE 250000 # Physical log file size (Kbytes) # Logical Log Configuration LOGFILES 50 # Number of logical log files LOGSIZE 10000 # Logical log size (Kbytes) # Diagnostics MSGPATH /usr/informix/online.log # System message log file path CONSOLE /usr/informix/console.log # System console message path # ALARMPROGRAM # Alarm program path # System Archive Tape Device #TAPEDEV /dev/rmt/1m # Sony AIT 8mm drive 1 #TAPEDEV /dev/rmt/0m # 4mm DAT TAPEDEV /dev/null # Tape device path TAPEBLK 2048 # Tape block size (Kbytes)#TAPESIZE 8000000 # Maximum amount of data to put on tape (Kbytes) TAPESIZE 24000000 # Maximum amount of data to put on tape (Kbytes) # Log Archive Tape Device LTAPEDEV /dev/null # Log tape device path LTAPEBLK 512 # Log tape block size (Kbytes) LTAPESIZE 8000000 # Max amount of data to put on log tape (Kbytes) # Optical STAGEBLOB # INFORMIX-OnLine/Optical staging area # System Configuration SERVERNUM 0 # Unique id corresponding to a OnLineinstance DBSERVERNAME scandata # Name of default database server DBSERVERALIASES scantcp_prod # List of alternate dbservernames DEADLOCK_TIMEOUT 60 # Max time to wait of lock indistributed env. # TSGL: I changed RESIDENT to 1 on the advice of Informix Help Desk # RESIDENT 0 # Forced residency flag (Yes = 1, No = 0) RESIDENT 1 # Forced residency flag (Yes = 1, No = 0) MULTIPROCESSOR 1 # 0 for single-processor, 1 formulti-processor NUMCPUVPS 8 # Number of user (cpu) vps SINGLE_CPU_VP 0 # If non-zero, limit number of cpu vpsto one NOAGE 0 # Process aging AFF_SPROC 0 # Affinity start processor AFF_NPROCS 0 # Affinity number of processors # Shared Memory Parameters LOCKS 300000 # Maximum number of locks BUFFERS 60000 # Maximum number of shared buffers NUMAIOVPS 60 # Number of IO vps PHYSBUFF 1024 # Physical log buffer size (Kbytes) LOGBUFF 64 # Logical log buffer size (Kbytes)LOGSMAX 50 # Maximum number of logical log files CLEANERS 50 # Number of buffer cleaner processes SHMBASE 0x0 # Shared memory base address SHMVIRTSIZE 330000 # initial virtual shared memory segmentsize SHMADD 8192 # Size of new shared memory segments (Kbytes) SHMTOTAL 525000 # Total shared memory (Kbytes). 0=>unlimited CKPTINTVL 3000 # Check point interval (in sec) LRUS 50 # Number of LRU queues LRU_MAX_DIRTY 8 # LRU percent dirty begin cleaninglimit LRU_MIN_DIRTY 4 # LRU percent dirty end cleaning limit LTXHWM 40 # Long transaction high water markpercentage LTXEHWM 50 # Long transaction high water mark (exclusive) TXTIMEOUT 0x12c # Transaction timeout (in sec) STACKSIZE 48 # Stack size (Kbytes) # System Page Size # BUFFSIZE - OnLine no longer supports this configuration parameter. # To determine the page size used by OnLine on your platform # see the last line of output from the command, 'onstat -b'. # Recovery Variables # OFF_RECVRY_THREADS: # Number of parallel worker threads during fast recovery or an offline restore. # ON_RECVRY_THREADS: # Number of parallel worker threads during an online restore. OFF_RECVRY_THREADS 4 # Default number of offline workerthreads ON_RECVRY_THREADS 4 # Default number of online workerthreads # Data Replication Variables # DRAUTO: 0 manual, 1 retain type, 2 reverse type DRAUTO 0 # DR automatic switchover DRINTERVAL 30 # DR max time between DR buffer flushes (in sec) DRTIMEOUT 30 # DR network timeout (in sec) DRLOSTFOUND /usr/informix/etc/dr.lostfound # DR lost+found filepath # Read Ahead Variables RA_PAGES 128 # Number of pages to attempt to readahead RA_THRESHOLD 120 # Number of pages left before nextgroup # DBSPACETEMP: # OnLine equivalent of DBTEMP for SE. This is the list of dbspaces # that the OnLine SQL Engine will use to create temp tables etc. # If specified it must be a colon separated list of dbspaces that exist # when the OnLine system is brought online. If not specified, or if # all dbspaces specified are invalid, various ad hoc queries will create # temporary files in /tmp instead. DBSPACETEMP dbtmp01,dbtmp02,dbtmp03,dbtmp04,dbtmp05,dbtmp06,dbtmp07,dbtmp08,dbtmp09,dbtmp1

ALso increase the ipcshm NETTYPE to 8 listeners instead of the one so all of the CPU VPs are listening for work when they are not busy. Also see in the release notes if your version supports NOAGE which is VERY important in HPland. Your RA_THRESHOLD looks HUGE how is the RA utilization ratio? Art S. Kagel Jeffrey Screws wrote: > > Hello All, > > We are trying to sqeeze just a little more value out of our oldest DB > server. We just added 4 more processors to our HP 9000 T500 > system(total of 8 now). What to I need to tune besides NUMCPUVPS? I > set it to 8. I don't think I can use affinity on this version of > HP/Informix. This is a dedicated DSS type DB server without > applications running locally. We currently run with the attached > onconfig during user query time and during data loads which happen on > the weekend. How would I tune two different onconfigs, one appropriate > for each task? Any suggestions appreciated, even if they are not > related to the additional CPUs. > > TIA, > Jeff > > HW: HP9000 T500 w/ 8 processors > 768mb RAM > ~125 old, old, unreliable, die every other week, singleton 2 gb > disks > > SW: HP-UX 10.20 > IDS 7.22.UC1 > > INFORMIX-OnLine Version 7.22.UC1 -- On-Line -- Up 00:02:27 -- 482712 > Kbytes > > Configuration File: /usr/informix/etc/onconfig.scandata > #************************************************************************** > # > # INFORMIX SOFTWARE, INC. > # > # Title: onconfig.std > # Description: INFORMIX-OnLine Configuration Parameters > # > #************************************************************************** > > # Temporary parameter to compensate for crashed disk. 9/10/96 > > DATASKIP off> > # Root Dbspace Configuration > > ROOTNAME rootdbs # Root dbspace name > ROOTPATH /dev/infx/sc020_09 # Path for device containing root> dbspace > ROOTOFFSET 0 # Offset of root dbspace into device > (Kbytes) > ROOTSIZE 250000 # Size of root dbspace (Kbytes)> > # Disk Mirroring Configuration Parameters > > MIRROR 0 # Mirroring flag (Yes = 1, No = 0) > MIRRORPATH # Path for device containing mirrored> root > MIRROROFFSET 0 # Offset into mirrored device (Kbytes)> > # Physical Log Configuration > > PHYSDBS plog # Location (dbspace) of physical log > PHYSFILE 250000 # Physical log file size (Kbytes)> > # Logical Log Configuration > > LOGFILES 50 # Number of logical log files > LOGSIZE 10000 # Logical log size (Kbytes)> > # Diagnostics > > MSGPATH /usr/informix/online.log # System message log file path > CONSOLE /usr/informix/console.log # System console message path > # ALARMPROGRAM # Alarm program path > > # System Archive Tape Device > > #TAPEDEV /dev/rmt/1m # Sony AIT 8mm drive 1 > #TAPEDEV /dev/rmt/0m # 4mm DAT > TAPEDEV /dev/null # Tape device path > TAPEBLK 2048 # Tape block size (Kbytes)> #TAPESIZE 8000000 # Maximum amount of data to put on > tape (Kbytes) > TAPESIZE 24000000 # Maximum amount of data to put on tape > (Kbytes)> > # Log Archive Tape Device > > LTAPEDEV /dev/null # Log tape device path > LTAPEBLK 512 # Log tape block size (Kbytes) > LTAPESIZE 8000000 # Max amount of data to put on log tape > (Kbytes)> > # Optical > > STAGEBLOB # INFORMIX-OnLine/Optical staging area > > # System Configuration > > SERVERNUM 0 # Unique id corresponding to a OnLine> instance > DBSERVERNAME scandata # Name of default database server > DBSERVERALIASES scantcp_prod # List of alternate dbservernames > DEADLOCK_TIMEOUT 60 # Max time to wait of lock in> distributed env. > # TSGL: I changed RESIDENT to 1 on the advice of Informix Help Desk > # RESIDENT 0 # Forced residency flag (Yes = 1, No = > 0) > RESIDENT 1 # Forced residency flag (Yes = 1, No = > 0) > > MULTIPROCESSOR 1 # 0 for single-processor, 1 for> multi-processor > NUMCPUVPS 8 # Number of user (cpu) vps > SINGLE_CPU_VP 0 # If non-zero, limit number of cpu vps> to one > > NOAGE 0 # Process aging > AFF_SPROC 0 # Affinity start processor > AFF_NPROCS 0 # Affinity number of processors> > # Shared Memory Parameters > > LOCKS 300000 # Maximum number of locks > BUFFERS 60000 # Maximum number of shared buffers > NUMAIOVPS 60 # Number of IO vps > PHYSBUFF 1024 # Physical log buffer size (Kbytes) > LOGBUFF 64 # Logical log buffer size (Kbytes)> LOGSMAX 50 # Maximum number of logical log files > CLEANERS 50 # Number of buffer cleaner processes > SHMBASE 0x0 # Shared memory base address > SHMVIRTSIZE 330000 # initial virtual shared memory segment> size > SHMADD 8192 # Size of new shared memory segments > (Kbytes) > SHMTOTAL 525000 # Total shared memory (Kbytes). > 0=>unlimited > CKPTINTVL 3000 # Check point interval (in sec) > LRUS 50 # Number of LRU queues > LRU_MAX_DIRTY 8 # LRU percent dirty begin cleaning> limit > LRU_MIN_DIRTY 4 # LRU percent dirty end cleaning limit > LTXHWM 40 # Long transaction high water mark> percentage > LTXEHWM 50 # Long transaction high water mark > (exclusive) > TXTIMEOUT 0x12c # Transaction timeout (in sec) > STACKSIZE 48 # Stack size (Kbytes)> > # System Page Size > # BUFFSIZE - OnLine no longer supports this configuration parameter. > # To determine the page size used by OnLine on your platform > # see the last line of output from the command, 'onstat -b'. > > # Recovery Variables > # OFF_RECVRY_THREADS: > # Number of parallel worker threads during fast recovery or an offline > restore. > # ON_RECVRY_THREADS: > # Number of parallel worker threads during an online restore. > > OFF_RECVRY_THREADS 4 # Default number of offline worker> threads > ON_RECVRY_THREADS 4 # Default number of online worker> threads > > # Data Replication Variables > # DRAUTO: 0 manual, 1 retain type, 2 reverse type > DRAUTO 0 # DR automatic switchover > DRINTERVAL 30 # DR max time between DR buffer flushes > (in sec) > DRTIMEOUT 30 # DR network timeout (in sec) > DRLOSTFOUND /usr/informix/etc/dr.lostfound # DR lost+found file> path > > # Read Ahe