Arghh! Please Help.

Hello All, I have upgraded Online 5.0 to IDS 7.3 while also upgrading from a ALR 6xPentiumPro 200 to a Sun E3500 w/4x336Mhz UltraSparc. The new setup is overall a tiny bit faster for some things, or about twice as slow for a lot of things. I have spent a lot of time trying to tune IDS 7.3, but still cannot get the results I would expect. Simple things on the SCO/Online5.0 are about 1.5 to 2 times slower on the SUN/IDS7.3 box. (Before you yell at me OPTCOMPIND=0) Here are a few questions I was hoping some of you might be able to help me with: 1) On the SCO/Online5.0 box, when I turn on explain processing, a query takes around 2 to 3 times longer, on the SUN/IDS box, a query with explain processing turned on takes around 40 - 50 times as long. Is this normal? 2) In the release notes for IDS 7.3 on Solaris 2.6, the kernel parameter "enable_sm_wa = 1" should be set, however my Solaris 2.6 box complains that the parameter "enable_sm_wa" is not defined within the kernel. Could this affect anything? 3) I am using Disksuite on the E3500 to software mirror my root disk and my /usr partition which is where the informix installation is located, could this adversely affect performance (I am sure it would a little, but how much?) ? 4) Would having the physical and logical logs residing in the root dbspace effect query performance? 5) Last question is I have noticed on some queries, IDS7.3 does a dynamic hash join where Online 5.0 does a sort merge. Is there any way for me to force IDS 7.3 to do a sort merge? Some final notes, both systems are configured with 512MB main memory, the Sparc processors have a 4MB L2 cache as opposed to the P-Pro's which have a 256k L2. The Intel box uses Fast-UW-SCSI and the E3500 uses internal FC-AL. Both DB's use buffered logging. Included below is my IDS 7.3 onstat -c and -p. Thanks in advance. Olaf PS - I really hope someone can help me because I am going to puke if I cannot get a E3500 w/IDS 7.3 to run faster than 6 Pentium Pros w/Online5.0. -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Informix Dynamic Server Version 7.30.UC6 -- On-Line -- Up 00:05:30 -- 311296 Kbytes Configuration File: /usr/local/informix/etc/onconfig.use #************************************************************************** # # INFORMIX SOFTWARE, INC. # # Title: onconfig.std # Description: Informix Dynamic Server Configuration Parameters # #************************************************************************** # Root Dbspace Configuration ROOTNAME dbroot # Root dbspace name ROOTPATH /dev/lrdbroot # Path for device containing root dbspace ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes) ROOTSIZE 2090000 # Size of root dbspace (Kbytes) # Disk Mirroring Configuration Parameters MIRROR 1 # Mirroring flag (Yes = 1, No = 0) MIRRORPATH /dev/lrdbroot2 # Path for device containing mirrored root MIRROROFFSET 0 # Offset into mirrored device (Kbytes) # Physical Log Configuration PHYSDBS dbroot # Location (dbspace) of physical log PHYSFILE 8000 # Physical log file size (Kbytes) # Logical Log Configuration LOGFILES 55 # Number of logical log files LOGSIZE 12500 # Logical log size (Kbytes) # Diagnostics MSGPATH /usr/local/informix/online.log # System message log file path CONSOLE /usr/local/informix/console.log # System console message path ALARMPROGRAM /usr/local/informix/etc/log_full.sh # Alarm program path SYSALARMPROGRAM /usr/local/informix/etc/evidence.sh # System Alarm program path TBLSPACE_STATS 1 # System Archive Tape Device TAPEDEV /dev/rmt/0 # Tape device path TAPEBLK 32 # Tape block size (Kbytes) TAPESIZE 12000000 # Maximum amount of data to put on tape (Kbytes) # Log Archive Tape Device LTAPEDEV /dev/null # Log tape device path LTAPEBLK 32 # Log tape block size (Kbytes) LTAPESIZE 12000000 # 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 Dynamic Server instance DBSERVERNAME world # Name of default database server DBSERVERALIASES # List of alternate dbservernames DEADLOCK_TIMEOUT 60 # Max time to wait of lock in distributed env. RESIDENT 1 # 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 1 # Process aging AFF_SPROC 1 # Affinity start processor AFF_NPROCS 3 # Affinity number of processors # Shared Memory Parameters LOCKS 20000 # Maximum number of locks BUFFERS 128000 # 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 100 # Maximum number of logical log files CLEANERS 8 # Number of buffer cleaner processes SHMBASE 0xa000000 # 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 60 # LRU percent dirty begin cleaning limit LRU_MIN_DIRTY 50 # 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 - 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