Performance advice

Hi all! Throwing myslef on your mercy here - I have a RS6000 with 4 processors running IDS 9.40.FC2 and I just went from 1 gig of memory to 8 gig. I am wondering how I should edit my onconfig for performance - to both take advantage of the new memory and make up for past flubbishness of other admins. I know this is probably a lot to ask, but I am really not up to speed yet on IDS (but I am working on it!) Thanks in advance for your patience and wisdom! #************************************************************************** # # INFORMIX SOFTWARE, INC. # # Title: onconfig.std # Description: Informix Dynamic Server 2000 Configuration Parameters # #************************************************************************** # 11/05/2002 Decreased tapesize param from 21G to 15G due to failure of # ontape backup. BGF #************************************************************************** # Root Dbspace Configuration ROOTNAME rootdbs # Root dbspace name ROOTPATH /dev/rootdbs # Path for device containing rootdbspace ROOTOFFSET 128 # Offset of root dbspace into device (Kbytes) ROOTSIZE 499872 # 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 physdbs_new # Location (dbspace) of physical log PHYSFILE 199000 # Physical log file size (Kbytes) # Logical Log Configuration DYNAMIC_LOGS 2 LOGFILES 120 # Number of logical log files LOGSIZE 1000 # Logical log size (Kbytes) # Diagnostics MSGPATH /u/informix/online.log # System message log file path CONSOLE /dev/console # System console message path ##ALARMPROGRAM /u/informix/etc/log_full.sh # Alarm program path ALARMPROGRAM /u/informix/etc/no_log.sh # Alarm program path TBLSPACE_STATS 1 # Maintain tblspace statistics # System Archive Tape Device # testdev: TAPEDEV scout:/dev/rmt0 # Tape device path #TAPEDEV /dev/null # Tape device path TAPEBLK 256 # Tape block size (Kbytes) TAPESIZE 15000000 # Maximum amount of data to put on tape (Kbytes)#TAPESIZE 21000000 # Maximum amount of data to put on tape (Kbytes) # Log Archive Tape Device #LTAPEDEV /dev/null # Log tape device path # LTAPEDEV /archive/informix_backup/ll # Log tape device path LTAPEDEV /dbwork/informix_backup/ll # Log tape device path LTAPEBLK 1024 # Log tape block size (Kbytes) LTAPESIZE 2000000 # Max amount of data to put on log tape (Kbytes) # Optical STAGEBLOB # Informix Dynamic Server 2000 staging area # System Configuration SERVERNUM 1 # Unique id corresponding to a OnLineinstance DBSERVERNAME dbscout # Name of default database server DBSERVERALIASES dbscouttcp # List of alternate dbservernames NETTYPE soctcp,2,150,CPU NETTYPE ipcshm,2,150,NET #NETTYPE soctcp,,,NET # Configure poll thread(s) for nettype #NETTYPE ipcshm,2,150,CPU # Configure poll thread(s) for nettype DEADLOCK_TIMEOUT 60 # Max time to wait of lock indistributed env. RESIDENT 0 # Forced residency flag (Yes = 1, No = 0) MULTIPROCESSOR 1 # 0 for single-processor, 1 formulti-processor NUMCPUVPS 3 # Number of user (cpu) vps #NUMCPUVPS 1 # Number of user (cpu) vps SINGLE_CPU_VP 0 # If non-zero, limit number of cpu vpsto one NOAGE 1 # Process aging AFF_SPROC 0 # Affinity start processor AFF_NPROCS 0 # Affinity number of processors # Shared Memory Parameters LOCKS 200000 # Maximum number of locks BUFFERS 150000 # Maximum number of shared buffers NUMAIOVPS 2 # Number of IO vps PHYSBUFF 128 # Physical log buffer size (Kbytes) LOGBUFF 64 # Logical log buffer size (Kbytes) CLEANERS 64 # Number of buffer cleaner processes SHMBASE 0x700000000000000 # Shared memory base address SHMVIRTSIZE 1048576 # initial virtual shared memorysegment size #SHMVIRTSIZE 400000 # -x- # initial virtual shared memory segment size SHMADD 163840 # Size of new shared memory segments (Kbytes) SHMTOTAL 7864320 #SHMTOTAL 0 # -x- # Total shared memory (Kbytes). 0=>unlimited CKPTINTVL 1800 # Check point interval (in sec) LRUS 64 # Number of LRU queues LRU_MAX_DIRTY 2.000000 # LRU percent dirty begin cleaninglimit LRU_MIN_DIRTY 1.000000 # LRU percent dirty end cleaning limit#LRU_MAX_DIRTY 2 # LRU percent dirty begin cleaning limit #LRU_MIN_DIRTY 1 # LRU percent dirty end cleaning limit LTXHWM 50 # Long transaction high water mark percentage LTXEHWM 60 # Long transaction high water mark (exclusive) TXTIMEOUT 0x12c # Transaction timeout (in sec) #STACKSIZE 32 # Stack size (Kbytes) #STACKSIZE 64 # Stack size (Kbytes) -! BEFORE 030204- STACKSIZE 128 # Stack size (Kbytes) -! AFTER 030204- # 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 10 # Default number of offline workerthreads ON_RECVRY_THREADS 3 # Default number of online workerthreads # Data Replication Variables DRINTERVAL 30 # DR max time between DR buffer flushes (in sec) DRTIMEOUT 30 # DR network timeout (in sec) DRLOSTFOUND /u/informix/lostfound # DR lost+found file path # CDR Variables CDR_EVALTHREADS 1,1 # evaluator threads (per-cpu-vp,additional) CDR_DSLOCKWAIT 5 # DS lockwait timeout (seconds) CDR_QUEUEMEM 4096 # Maximum amount of memory for any CDR queue (Kbytes) CDR_NIFCOMPRESS 0 # Link level compression (-1 never, 0 none, 9 max) # Backup/Restore variables #BAR_ACT_LOG /tmp/bar_act.log BAR_MAX_BACKUP 0 BAR_RETRY 1 BAR_NB_XPORT_COUNT 10 BAR_XFER_BUF_SIZE 31 RESTARTABLE_RESTORE off BAR_PROGRESS_FREQ 0 # Informix Storage Manager variables ISM_DATA_POOL ISMData ISM_LOG_POOL ISMLogs # Read Ahead Variables@@N

Try increasing the buffers and monitoring onstat -p, if you are allocating additional segments (onstat -g seg) then up your shmvirtsize. AIX has (had??) a hard limit of 10 segments for any process sumGirl wrote: > > Hi all! Throwing myslef on your mercy here - I have a RS6000 with 4 > processors running IDS 9.40.FC2 and I just went from 1 gig of memory > to 8 gig. > > I am wondering how I should edit my onconfig for performance - to both > take advantage of the new memory and make up for past flubbishness of > other admins. I know this is probably a lot to ask, but I am really > not up to speed yet on IDS (but I am working on it!) > > Thanks in advance for your patience and wisdom! > > #************************************************************************** > # > # INFORMIX SOFTWARE, INC. > # > # Title: onconfig.std > # Description: Informix Dynamic Server 2000 Configuration Parameters > # > #************************************************************************** > # 11/05/2002 Decreased tapesize param from 21G to 15G due to failure > of > # ontape backup. BGF > #**************************************************************************> > # Root Dbspace Configuration > > ROOTNAME rootdbs # Root dbspace name > ROOTPATH /dev/rootdbs # Path for device containing root> dbspace > ROOTOFFSET 128 # Offset of root dbspace into device > (Kbytes) > ROOTSIZE 499872 # 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 physdbs_new # Location (dbspace) of physical log > PHYSFILE 199000 # Physical log file size (Kbytes)> > # Logical Log Configuration > > DYNAMIC_LOGS 2 > LOGFILES 120 # Number of logical log files > LOGSIZE 1000 # Logical log size (Kbytes)> > # Diagnostics > > MSGPATH /u/informix/online.log # System message log file path > CONSOLE /dev/console # System console message path > ##ALARMPROGRAM /u/informix/etc/log_full.sh # Alarm program path > ALARMPROGRAM /u/informix/etc/no_log.sh # Alarm program path > TBLSPACE_STATS 1 # Maintain tblspace statistics> > # System Archive Tape Device > # testdev: > TAPEDEV scout:/dev/rmt0 # Tape device path > #TAPEDEV /dev/null # Tape device path > TAPEBLK 256 # Tape block size (Kbytes) > TAPESIZE 15000000 # Maximum amount of data to put on > tape (Kbytes)> #TAPESIZE 21000000 # Maximum amount of data to put on tape (Kbytes) > > # Log Archive Tape Device > > #LTAPEDEV /dev/null # Log tape device path > # LTAPEDEV /archive/informix_backup/ll # Log tape device path > LTAPEDEV /dbwork/informix_backup/ll # Log tape device path > LTAPEBLK 1024 # Log tape block size (Kbytes) > LTAPESIZE 2000000 # Max amount of data to put on log > tape (Kbytes)> > # Optical > > STAGEBLOB # Informix Dynamic Server 2000 staging > area > > # System Configuration > > SERVERNUM 1 # Unique id corresponding to a OnLine> instance > DBSERVERNAME dbscout # Name of default database server > DBSERVERALIASES dbscouttcp # List of alternate dbservernames > NETTYPE soctcp,2,150,CPU > NETTYPE ipcshm,2,150,NET> #NETTYPE soctcp,,,NET # Configure poll thread(s) for nettype > #NETTYPE ipcshm,2,150,CPU # Configure poll thread(s) for nettype > DEADLOCK_TIMEOUT 60 # Max time to wait of lock in> distributed env. > RESIDENT 0 # Forced residency flag (Yes = 1, No = > 0) > > MULTIPROCESSOR 1 # 0 for single-processor, 1 for> multi-processor > > NUMCPUVPS 3 # Number of user (cpu) vps> #NUMCPUVPS 1 # Number of user (cpu) vps > > SINGLE_CPU_VP 0 # If non-zero, limit number of cpu vps> to one > > NOAGE 1 # Process aging > AFF_SPROC 0 # Affinity start processor > AFF_NPROCS 0 # Affinity number of processors> > # Shared Memory Parameters > > LOCKS 200000 # Maximum number of locks > BUFFERS 150000 # Maximum number of shared buffers > NUMAIOVPS 2 # Number of IO vps > PHYSBUFF 128 # Physical log buffer size (Kbytes) > LOGBUFF 64 # Logical log buffer size (Kbytes) > CLEANERS 64 # Number of buffer cleaner processes > SHMBASE 0x700000000000000 # Shared memory base address > SHMVIRTSIZE 1048576 # initial virtual shared memory> segment size > #SHMVIRTSIZE 400000 # -x- # initial virtual shared memory > segment size > SHMADD 163840 # Size of new shared memory segments > (Kbytes) > SHMTOTAL 7864320 > #SHMTOTAL 0 # -x- # Total shared memory (Kbytes). > 0=>unlimited > CKPTINTVL 1800 # Check point interval (in sec) > LRUS 64 # Number of LRU queues > LRU_MAX_DIRTY 2.000000 # LRU percent dirty begin cleaning> limit > LRU_MIN_DIRTY 1.000000 # LRU percent dirty end cleaning limit> #LRU_MAX_DIRTY 2 # LRU percent dirty begin cleaning limit > #LRU_MIN_DIRTY 1 # LRU percent dirty end cleaning limit > LTXHWM 50 # Long transaction high water mark percentage > LTXEHWM 60 # Long transaction high water mark (exclusive) > TXTIMEOUT 0x12c # Transaction timeout (in sec) > #STACKSIZE 32 # Stack size (Kbytes) > #STACKSIZE 64 # Stack size (Kbytes) -! BEFORE 030204- > STACKSIZE 128 # Stack size (Kbytes) -! AFTER > 030204-> > # 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 10 # Default number of offline worker> threads > ON_RECVRY_THREADS 3 # Default number of online worker> threads > > # Data Replication Variables > DRINTERVAL 30 # DR max time between DR buffer > flushes (in sec) > DRTIMEOUT 30 # DR network timeout (in sec) > DRLOSTFOUND /u/informix/lostfound # DR lo