Fw: Need help!! Sql to Informix Migration
you may update your BUFFERS, how much memory do you have? you may send your
machine configuration for tuning onconfig file.
----- Original Message -----
From: "Unholy" <dcalleja@gmail.com>
To: <informix-list@iiug.org>
Sent: Monday, April 18, 2005 11:10 AM
Subject: Need help!! Sql to Informix Migration
> Hi, I have developed a program that runs under sql Server, and it runs
> really fast...... The problem is that now, I have to change the DBMS to
> Informix.
>
> I installed Informix under W2000, and also under W2003, and with it the
> program is really slow, as much as 10 times slower than when it was
> running under SQl.
>
>
> I think that Informix should be faster, and I think that i hace to
> condigure it, but i do not have so much experience as with sql... can
> you help me??
>
> This is my ONCONFIG file
>
> #**************************************************************************
> #
> # INFORMIX SOFTWARE, INC.
> #
> # Title: onconfig.std
> # Description: Informix Dynamic Server Configuration Parameters
> #
> #**************************************************************************
>
> # Root Dbspace Configuration
>
> ROOTNAME rootdbs # Root dbspace name
> ROOTPATH C:\\IFMXDATA\\nomina\\rootdbs_dat.000> # Path for device containing root
> dbspace
> ROOTOFFSET 0 # Offset of root dbspace into device
> (Kbytes)
> ROOTSIZE 51200 # Size of root dbspace (Kbytes)>
> # Disk Mirroring Configuration Parameters
>
> MIRROR 1 # Mirroring flag (Yes = 1, No = 0)
> MIRRORPATH D:\\IFMXDATA\\nomina\\rootdbs_mirr.000
> # Path for device containing mirrored
> root
> MIRROROFFSET 0 # Offset into mirrored device (Kbytes)>
> # Physical Log Configuration
>
> PHYSDBS rootdbs # Location (dbspace) of physical log
> PHYSFILE 2000 # Physical log file size (Kbytes)>
> # Logical Log Configuration
>
> LOGFILES 7 # Number of logical log files
> LOGSIZE 2000 # Logical log size (Kbytes)> LOG_BACKUP_MODE MANUAL # Logical log backup mode (MANUAL,
> CONT)
>
> # Diagnostics
>
> MSGPATH C:\\PROGRA~1\\Informix\\nomina.log # System message log
> file path
> CONSOLE C:\\PROGRA~1\\Informix\\connomina.log # System console
> message path
>
> # To automatically backup logical logs, edit alarmprogram.bat and set
> # BACKUPLOGS=Y
> ALARMPROGRAM C:\\PROGRA~1\\Informix\\etc\\alarmprogram.bat # Alarm
> program path
> TBLSPACE_STATS 1 # Maintain tblspace statistics>
>
> # System Diagnostic Script.
> # SYSALARMPROGRAM - Full path of the system diagnostic script (e.g.
> # c:\\informix\\etc\\evidence.bat.) Set this parameter
> # if you want a different Diagnostic Script than
> # {INFORMIXDIR}\\etc\\evidence.bat, which is default.
>
> # System Archive Tape Device
>
> TAPEDEV \\\\.\\TAPE0 # Tape device path
> TAPEBLK 16 # Tape block size (Kbytes)
> TAPESIZE 10240 # 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 10240 # Max amount of data to put on log tape
> (Kbytes)>
> # Optical
>
> STAGEBLOB # Informix Dynamic Server/Optical
> staging area
> OPTICAL_LIB_PATH # Location of Optical Subsystem driver
> DLL
>
> # System Configuration
>
> SERVERNUM 1 # Unique id corresponding to a server> instance
> DBSERVERNAME nomina # Name of default Dynamic Server
> DBSERVERALIASES # List of alternate dbservernames
> NETTYPE soctcp,1,,NET # Override sqlhosts nettype parameters
> DEADLOCK_TIMEOUT 10 # 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 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 2000 # Maximum number of locks
> BUFFERS 2000 # 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)
> CLEANERS 1 # Number of buffer cleaner processes
> SHMBASE 0xc000000 # Shared memory base address
> SHMVIRTSIZE 8192 # initial virtual shared memory segment> size
> SHMADD 8192 # 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 60.000000 # LRU percent dirty begin cleaning> limit
> LRU_MIN_DIRTY 50.000000 # LRU percent dirty end cleaning limit
> TXTIMEOUT 0x12c # Transaction timeout (in sec)
> STACKSIZE 64 # Stack size (Kbytes)>
> # Dynamic Logging
> # DYNAMIC_LOGS:
> # 2 : server automatically add a new logical log when necessary.
> (ON)
> # 1 : notify DBA to add new logical logs when necessary. (ON)
> # 0 : cannot add logical log on the fly. (OFF)
> #
> # When dynamic logging is on, we can have higher values for
> LTXHWM/LTXEHWM,
> # because the server can add new logical logs during long transaction
> rollback.
> # However, to limit the number of new logical logs being added,
> LTXHWM/LTXEHWM
> # can be set to smaller values.
> #
> # If dynamic logging is off, LTXHWM/LTXEHWM need to be set to smaller
> values
> # to avoid long transaction rollback hanging the server due to lack of
> logical
> # log space, i.e. 50/60 or lower.
>
> DYNAMIC_LOGS 2
> LTXHWM 70
> LTXEHWM 80>
> # 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 of