IDS Forum

Re: ONCONFIG comments

Posted By: Jack Parker
Date: Tuesday, 10 May 2005, at 6:34 a.m.

In Response To: ONCONFIG comments (Bono Vox)

I find onstat -a output to be better to work from, otherwise you're
guessing.

I will also say that of the tuning knobs, $ONCONFIG represents many of the
finer control knobs. Disk layout and fragmentation can be much more
important. oncheck -pe output can be very revealing here.

Offhand, rootdbs looks small and you're not affinitizing to the CPUs (is
that SOP under HPUX? I forget). Are you really supporting 1500
connections? (nettype)

That said, I'll try to have a deeper look this evening.

j.

----- Original Message -----
From: "Bono Vox" <in4mixperu@hotmail.com>
To: <ids@iiug.org>
Sent: Tuesday, May 10, 2005 4:00 AM
Subject: ONCONFIG comments [4891]


> Hi:
> Let me begin by saying thanks to all of the frequent posters to this
group.
> I wanted to offer my config for comments.
> thanks
>
> ============================================================
> Hola:
> Muchas gracias por el tiempo y su ayuda. Estoy dejando mi archivo
> ONCONFIG para poder recibir comentarios que me permitar optimizar la
> performance del motor.
>
> gracias
>
> ============================================================
> HP-UX 11.11 (64 bits)
> 4 CPU's
> 12 GB Memory
> Array VA7400
> Informix 7.31 FD8
> ============================================================
>
> ONCONFIG
> =======
>
> # Root Dbspace Configuration
>
> ROOTNAME rootdbs # Root dbspace name
> ROOTPATH /dev/informix/nazcasysch01 # Path for device containing
> root dbspace
> ROOTOFFSET 0 # Offset of root
> dbspace into device (Kbytes)
> ROOTSIZE 204800 # Size of root
dbspace
> (Kbytes)
>
> # Disk Mirroring Configuration Parameters
>
> MIRROR 1 # Mirroring flag (Yes = 1, No = 0)
> MIRRORPATH # Path for device containing mirrored root
> MIRROROFFSET 0 # Offset into mirrored device (Kbytes)
>
> # Physical Log Configuration
>
> PHYSDBS phydbs # Location (dbspace) of physical log
> PHYSFILE 64000 # Physical log file size (Kbytes)
>
> # Logical Log Configuration
>
> LOGFILES 80 # Number of logical log files
> LOGSIZE 32768 # Logical log size (Kbytes)
>
> # Diagnostics
>
> MSGPATH /usr/informix/log/nazca.log # System message log
> file path
> CONSOLE /usr/informix/log/nazca.msg # System console
> message path
> ALARMPROGRAM /usr/informix/etc/eventos_nazca.sh # Alarm program
path
> SYSALARMPROGRAM /usr/informix/etc/evidence.sh # System Alarm
> program path
> TBLSPACE_STATS 1
>
> # System Archive Tape Device
>
> TAPEDEV /dev/rmt/2m # Tape device path
> #TAPEDEV /dev/rmt/2m # Tape device path
> TAPEBLK 4000 # Tape block size (Kbytes)
> TAPESIZE 40000000 # Maximum amount of data to put
> on tape (Kbytes)
>
> # Log Archive Tape Device
>
> LTAPEDEV /dev/rmt/2m # Log tape device path
> #LTAPEDEV /dev/rmt/2m # Log tape device path
> LTAPEBLK 4000 # Log tape block size (Kbytes)
> LTAPESIZE 40000000 # Max amount of data to put on log tape
> (Kbytes)
>
> # Optical
>
> STAGEBLOB # Informix Dynamic Server/Optical staging
> area
>
> # System Configuration
>
> SERVERNUM 1 # Unique id corresponding to a
> Dynamic Server instance
> DBSERVERNAME nazca_shm # Name of default database server
> DBSERVERALIASES nazca_tcp # List of alternate dbservernames
> NETTYPE ipcshm,3,250,CPU # Configure poll thread(s) for
nettype
> NETTYPE soctcp,3,250,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
> 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 1024000 # Maximum number of locks
> BUFFERS 850000 # Maximum number of shared buffers
> NUMAIOVPS 1 # Number of IO vps
> PHYSBUFF 512 # Physical log buffer size (Kbytes)
> LOGBUFF 512 # Logical log buffer size (Kbytes)
> LOGSMAX 100 # Maximum number of logical log files
> CLEANERS 64 # Number of buffer cleaner processes
> SHMBASE 0x0 # Shared memory base address
> SHMVIRTSIZE 393216 # initial virtual shared memory segment
size
> SHMADD 131072 # Size of new shared memory segments
> (Kbytes)
> SHMTOTAL 0 # Total shared memory (Kbytes).
0=>unlimited
> CKPTINTVL 300 # Check point interval (in sec)
> LRUS 64 # Number of LRU queues
> LRU_MAX_DIRTY 10 # LRU percent dirty begin cleaning limit
> LRU_MIN_DIRTY 5 # 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 128 # 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 worker
> threads
> ON_RECVRY_THREADS 1 # 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
>
> # 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)
> CDR_LOGDELTA 30 # % of log space allowed in queue memory
> CDR_NUMCONNECT 16 # Expected connections per server
> CDR_NIFRETRY 300 # Connection retry (seconds)
> CDR_NIFCOMPRESS 0 # Link level compression (-1 never, 0
none,
> 9 max)
>
> # Backup/Restore variables
> BAR_ACT_LOG /usr/informix/log/bar_act_nazca.log
> BAR_MAX_BACKUP 0
> BAR_RETRY 1
> BAR_NB_XPORT_COUNT 10
> BAR_XFER_BUF_SIZE 31
> # BAR_DEBUG 9
> BAR_DEBUG_LOG /usr/informix/log/bar_debug.log
>
> # 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 ahead
> RA_THRESHOLD 30 # Number of pages left before next group
>
> # DBSPACETEMP:
> # Dynamic Server equivalent of DBTEMP for SE. This is the list of dbspaces
> # that the Dynamic Server SQL Engine will use to create temp tables etc.
> # If specified it must be a colon separated list of dbspaces that exist
> # when the Dynamic Server 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 temporal1,temporl2 # Default temp dbspaces
>
> # DUMP*:
> # The following parameters control the type of diagnostics information
which
> # is preserved when an unanticipated error condition (assertion failure)
> occurs
> # during Dynamic Server operations.
> # For DUMPSHMEM, DUMPGCORE and DUMPCORE 1 means Yes, 0 means No.
>
> DUMPDIR /tmp # Preserve diagnostics in this directory
> DUMPSHMEM 0 # Dump a copy of shared memory
> DUMPGCORE 0 # Dump a core image using 'gcore'
> DUMPCORE 0 # Dump a core image (Warning:this aborts
> Dynamic Server)
> DUMPCNT 1 # Number of shared memory or gcore dumps
for
> # a single user's session
>
> FILLFACTOR 90 # Fill factor for building indexes
>
> # method for Dynamic Server to use when determining current time
> USEOSTIME 0 # 0: use internal time(fast), 1: get time
> from OS(slow)
>
> # Parallel Database Queries (pdq)
> MAX_PDQPRIORITY 80 # Maximum allowed pdqpriority
> DS_MAX_QUERIES 20 # Maximum number of decision support
queries
> DS_TOTAL_MEMORY 102400 # Decision support memory (Kbytes)
> DS_MAX_SCANS 1048576 # Maximum number of decision support scans
> DATASKIP off # List of dbspaces to skip
>
> # OPTCOMPIND
> # 0 => Nested loop joins will be preferred (where
> # possible) over sortmerge joins and hash joins.
> # 1 => If the transaction isolation mode is not
> # "repeatable read", optimizer behaves as in (2)
> # below. Otherwise it behaves as in (0) above.
> # 2 => Use costs regardless of the transaction isolation
> # mode. Nested loop joins are not necessarily
> # preferred. Optimizer bases its decision purely
> # on costs.
> OPTCOMPIND 2 # To hint the optimizer
>
> ONDBSPACEDOWN 0 # Dbspace down option: 0 = CONTINUE, 1 =
> ABORT, 2 = WAIT
> LBU_PRESERVE 1 # Preserve last log for log backup
> OPCACHEMAX 0 # Maximum optical cache size (Kbytes)
>
> # HETERO_COMMIT (Gateway participation in distributed transactions)
> # 1 => Heterogeneous Commit is enabled
> # 0 (or any other value) => Heterogeneous Commit is disabled
> HETERO_COMMIT 0
>
> # Optimization goal: -1 = ALL_ROWS(Default), 0 = FIRST_ROWS
> OPT_GOAL -1
>
> # Optimizer DIRECTIVES ON (1/Default) or OFF (0)
> DIRECTIVES 1
>
> # Status of restartable restore
> RESTARTABLE_RESTORE on
> BAR_BSALIB_PATH /opt/omni/lib/libob2informix_64bit.sl
> #-- Parametros no documentados
> #-- Diccionario cache y stored procedures
> DD_HASHMAX 20
> DD_HASHSIZE 503
> DS_POOLSIZE 503
> PC_POOLSIZE 503
>
>
>
>

Messages In This Thread

• ONCONFIG comments
  Bono Vox -- Tuesday, 10 May 2005, at 3:00 a.m.
  • Re: ONCONFIG comments
    Jack Parker -- Tuesday, 10 May 2005, at 6:34 a.m.
  • Re: ONCONFIG comments
    Jack Parker -- Wednesday, 11 May 2005, at 5:35 a.m.
  • Re: ONCONFIG comments
    Jack Parker -- Wednesday, 11 May 2005, at 5:55 a.m.

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