Re: Informix use of CPU's question

Art - I think you nailed it! I will admit, I never understood that the NETTYPE setting would translate into CPU distribution in that manner. I've included the entire onconfig file (below) but the NETTYPE parameters were: NETTYPE soctcp,3,80,CPU # Configure poll thread(s) for nettype NETTYPE ipcshm,1,15,NET # Configure poll thread(s) for nettype Your suggestion indicated 8 shared memory (CPU) and 4 tcp (NET). We run approx. 150-200 users, all TPC/IP connections. The only shared memory connect (that I know of) are the occasional telnet session for DBA stuff. Would my best option look similar to: NETTYPE soctcp,8,80,NET # Configure poll thread(s) for nettype NETTYPE ipcshm,1,15,CPU # Configure poll thread(s) for nettype ??? Informix Dynamic Server Version 7.30.UC5 -- On-Line -- Up 2 days 19:04:26 -- 147312 Kbytes Configuration File: /opt/informix/etc/onconfig #************************************************************************** # # INFORMIX SOFTWARE, INC. # # Title: onconfig.std # Description: Informix Dynamic Server Configuration Parameters # #************************************************************************** # Root Dbspace Configuration ROOTNAME rootdbs # Root dbspace name ROOTPATH /dev/chunk91 # Path for device containing rootdbspace ROOTOFFSET 20 # Offset of root dbspace into device (Kbytes) ROOTSIZE 800000 # 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 # Location (dbspace) of physical log PHYSFILE 60000 # Physical log file size (Kbytes) # Logical Log Configuration LOGFILES 16 # Number of logical log files LOGSIZE 6000 # Logical log size (Kbytes) # Diagnostics MSGPATH /opt/informix/online.log # System message log file path CONSOLE /dev/console # System console message path ALARMPROGRAM /opt/informix/etc/log_full.sh # Alarm program pathSYSALARMPROGRAM /opt/informix/etc/evidence.sh # System Alarm program path TBLSPACE_STATS 1 # System Archive Tape Device TAPEDEV /dev/rmt0 # Tape device path TAPEBLK 16 # Tape block size (Kbytes) TAPESIZE 4900000 # Maximum amount of data to put on tape (Kbytes) # Log Archive Tape Device LTAPEDEV /dev/rmt0 # Log tape device path LTAPEBLK 16 # Log tape block size (Kbytes) LTAPESIZE 4500000 # Max amount of data to put on log tape (Kbytes) # Optical STAGEBLOB # Informix Dynamic Server/Optical staging area # System Configuration SERVERNUM 0 # Unique id corresponding to a DynamicServer instance DBSERVERNAME court1 # Name of default database server DBSERVERALIASES court1a # List of alternate dbservernames NETTYPE soctcp,3,80,CPU # Configure poll thread(s) for nettype NETTYPE ipcshm,1,15,NET # 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 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 100000 # Maximum number of locks BUFFERS 15000 # Maximum number of shared buffers NUMAIOVPS 2 # Number of IO vps PHYSBUFF 32 # Physical log buffer size (Kbytes) LOGBUFF 32 # Logical log buffer size (Kbytes)LOGSMAX 36 # Maximum number of logical log files CLEANERS 32 # Number of buffer cleaner processes SHMBASE 0x30000000 # Shared memory base address SHMVIRTSIZE 80000 # initial virtual shared memorysegment size SHMADD 20000 # Size of new shared memory segments (Kbytes) SHMTOTAL 0 # Total shared memory (Kbytes). 0=>unlimited CKPTINTVL 240 # Check point interval (in sec) LRUS 32 # Number of LRU queues LRU_MAX_DIRTY 20 # LRU percent dirty begin cleaninglimit LRU_MIN_DIRTY 10 # LRU percent dirty end cleaning limit LTXHWM 50 # Long transaction high water markpercentage LTXEHWM 60 # Long transaction high water mark (exclusive) TXTIMEOUT 0x12c # Transaction timeout (in sec) STACKSIZE 32 # Stack size (Kbytes) # System Page Size # BUFFSIZE - Dynamic Server no longer supports this configuration parameter. # To determine the page size used by Dynamic Server 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 1 # 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 /opt/informix/etc/dr.lostfound # DR lost+found filepath # CDR Variables CDR_LOGBUFFERS 2048 # size of log reading buffer pool (Kbytes) CDR_EVALTHREADS 1,2 # 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) # Backup/Restore variables BAR_ACT_LOG /tmp/bar_act.log BAR_MAX_BACKUP 2 BAR_RETRY 1 BAR_NB_XPORT_COUNT 10 BAR_XFER_BUF_SIZE 31 # Informix Storage Manager variables ISM_DATA_POOL ISMData # If the data pool name is changed, be sure to # update $INFORMIXDIR/bin/onbar. Change to # ism_catalog -create_bootstrap -pool <new name> ISM_LOG_POOL ISMLogs # Read Ahead Variables RA_PAGES 32 # Number of pages to attempt to read@@N

FProse wrote: > > Art - I think you nailed it! > > I will admit, I never understood that the NETTYPE setting would > translate into CPU distribution in that manner. > > I've included the entire onconfig file (below) but the NETTYPE > parameters were: > > NETTYPE soctcp,3,80,CPU # Configure poll thread(s) for nettype > NETTYPE ipcshm,1,15,NET # Configure poll thread(s) for nettype> > Your suggestion indicated 8 shared memory (CPU) and 4 tcp (NET). We > run approx. 150-200 users, all TPC/IP connections. The only shared > memory connect (that I know of) are the occasional telnet session for > DBA stuff. > > Would my best option look similar to: > > NETTYPE soctcp,8,80,NET # Configure poll thread(s) for nettype > NETTYPE ipcshm,1,15,CPU # Configure poll thread(s) for nettype Even ,8,30, which would force the connections to spread across all of the NET VPs since any one could only handle 30 connections each. I'm not sure that you need 8 listeners though unless those users are all very active so you may be able to get away with ,4,60, for TCP. As for the one SHM listener, if you really do have almost no local connections then that will server just fine. Let us know how this works out for you. [SNIP] Art S. Kagel