Could you help me.

I have problem of performance in the system following an upgrade of service pack.

We work whit baan IV c 4 and a db informix.

Could you give me the best parameters for the file called "onconfig.baan"

Thank's in advance

How many memory and physical CPU has the server where Informix installed?

i want to know how to find tune the informix..

Not knowing your skill level with Informix, try this website - http://www.iiug.org/online/index.php

It also has a link to the several Informix mailing lists.

Andy

Hi,

i am going to change the server to fast processor and more memory.

how can i customise the onconfig to performace db faster.

current server is pentium 2-450 with 512MB RAM.

new server is Xeon Quad Core 1.6 with 1GB RAM.

Tuning IDS 7.3 TC9, current onconfig setting as below...

Please help and thank you.

#**************************************************************************
#
# INFORMIX SOFTWARE, INC.
#
# Title: onconfig.std
# Description: INFORMIX-OnLine Configuration Parameters
#
#**************************************************************************
# Root Dbspace Configuration
ROOTNAME rootdbs # Root dbspace name
ROOTPATH D:\IFMXDATA\ol_baan\rootdbs_dat.000 # Path for device containing root dbspace
# Path for device containing root dbspace
ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes)
ROOTSIZE 20480 # 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 baandb_plog # Location (dbspace) of physical log
PHYSFILE 204800 # Physical log file size (Kbytes)
# Logical Log Configuration
LOGFILES 80 # Number of logical log files
LOGSIZE 5000 # Logical log size (Kbytes)
# Diagnostics
MSGPATH D:\Informix\online.log # System message log file path
CONSOLE D:\Informix\console.log # System console message path
ALARMPROGRAM # Alarm program path
# System Archive Tape Device
TAPEDEV NUL # Tape device path
TAPEBLK 16 # Tape block size (Kbytes)
TAPESIZE 3901084 # Maximum amount of data to put on tape (Kbytes)
# Log Archive Tape Device
LTAPEDEV NUL # Log tape device path
LTAPEBLK 16 # Log tape block size (Kbytes)
LTAPESIZE 3901084 # Max amount of data to put on log tape (Kbytes)
# Optical
STAGEBLOB ,1 # INFORMIX-OnLine/Optical staging area
# System Configuration
SERVERNUM 0 # Unique id corresponding to a OnLine instance
DBSERVERNAME ol_baan # Name of default Dynamic Server
DBSERVERALIASES # List of alternate dbservernames
NETTYPE soctcp,1,100,CPU # Override sqlhosts nettype parameters
DEADLOCK_TIMEOUT 60 # Max time to wait of lock in distributed env.
RESIDENT 0 # Forced residency flag (Yes = 1, No = 0)
MULTIPROCESSOR 0 # 0 for single-processor, 1 for multi-processor
NUMCPUVPS 1 # Number of user (cpu) vps
SINGLE_CPU_VP 1 # 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 50000 # Maximum number of locks
BUFFERS 13092 # Maximum number of shared buffers
NUMAIOVPS 1 # Number of IO vps
PHYSBUFF 32 # Physical log buffer size (Kbytes)
LOGBUFF 32 # Logical log buffer size (Kbytes)
LOGSMAX 115 # Maximum number of logical log files
CLEANERS 1 # Number of buffer cleaner processes
SHMBASE 0xc000000 # Shared memory base address
SHMVIRTSIZE 32768 # initial virtual shared memory segment size
SHMADD 16384 # Size of new shared memory segments (Kbytes)
SHMTOTAL 0 # Total shared memory (Kbytes). 0=>unlimited
CKPTINTVL 300 # Check point interval (in sec)
LRUS 8 # Number of LRU queues
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)
# 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 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 \tmp # 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)
# Backup/Restore variables
BAR_ACT_LOG D:\Informix\bar_act.log #Path of log file for onbar.exe
BAR_MAX_BACKUP 1
BAR_RETRY 1
BAR_NB_XPORT_COUNT 10
BAR_XFER_BUF_SIZE 15
# Read Ahead Variables
RA_PAGES 4 # Number of pages to attempt to read ahead
RA_THRESHOLD # Number of pages left before next group
# 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 baandb_tmp # 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 OnLine operations.
# For DUMPSHMEM, DUMPGCORE and DUMPCORE 1 means Yes, 0 means No.
DUMPDIR \tmp # Preserve diagnostics in this directory
DUMPSHMEM 1 # Dump a copy of shared memory
DUMPGCORE 0 # Dump a core image using 'gcore'
DUMPCORE 0 # Dump a core image (Warning:this aborts OnLine)
DUMPCNT 1 # Number of shared memory or gcore dumps for
# a single user's session
# ADT*
# ADT* parameters moved to adtcfg file
FILLFACTOR 60 # Fill factor for building indexes
# method for OnLine to use when determining current time
USEOSTIME 0 # 0: use internal time(fast), 1: get time from OS(slow)
# Parallel Database Queries (pdq)
# OFF => 0, LOW => 1, HIGH => 100
MAX_PDQPRIORITY 100 # Maximum allowed pdqpriority
DS_MAX_QUERIES 1 # Maximum number of decision support queries
DS_TOTAL_MEMORY 2048 # 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 0 # To hint the optimizer
ONDBSPACEDOWN 0 # Dbspace down option: 0 = CONTINUE, 1 = ABORT, 2 = WAIT
LBU_PRESERVE 0 # Preserve last log for log backup
BAR_BSALIB_PATH D:\ISM\2.20\bin\libbsa.dll # Location of ISM XBSA DLL

I have informix administration guide where you can see db tunning.

send me your email address if interest.

thanks