RE: ETL tool configuration
Posted in 2000
I've forgotten the type of tin we're on here?
From: "Farmer, Byrd G - CFC" <Farmer.Byrd@cfwy.com>
>
>NETTYPE ipcshm,1,20,NET # Configure poll thread(s) for nettype
>NETTYPE tlitcp,6,20,CPU # Configure poll thread(s) for nettype
I'd rather swap NET and CPU on the above.
>RESIDENT 1 # Forced residency flag (Yes = 1, No = 0)
Have you tried -1
>MULTIPROCESSOR 1 # 0 for single-processor, 1 for>multi-processor
>NUMCPUVPS 7 # Number of user (cpu) vps
>SINGLE_CPU_VP 0 # Set to 1 for 1/2 processor machines
>NOAGE 0 # Process aging
This might be better on 1.
>AFF_SPROC 0 # Affinity start processor
>AFF_NPROCS 0 # Affinity number of processors
Setting these soemtimes helps.
>LOCKS 400000 # Maximum number of locks
>BUFFERS 900000 # Maximum number of shared buffers
>NUMAIOVPS 4 # Number of IO vps
I assume you have KAIO?
>PHYSBUFF 16 # Physical log buffer size (Kbytes)
>LOGBUFF 16 # Logical log buffer size (Kbytes)
Buffered or unbuffered logging? Or none at all?
>LOGSMAX 24 # Maximum number of logical log files
Seems a bit low.
>CLEANERS 10 # Number of buffer cleaner processes
Seems a bit low.
>SHMADD 32768 # Size of new shared memory segments
Seems a bit low.
>CKPTINTVL 300 # Check point interval (in sec)
>LRUS 24 # Number of LRU queues
37,500 buffers per LRU? I'd add a few more LRUs... :-)
>LRU_MAX_DIRTY 5 # LRU percent dirty begin cleaning limit
>LRU_MIN_DIRTY 2 # LRU percent dirty end cleaning limit
OLTP or DSS?
>RA_PAGES 64 # Number of pages to attempt to read ahead
>RA_THRESHOLD 50 # Number of pages left before next group
I'm not sure if values > 32 pages actually work, but I stand to be
corrected.
>"onstat -d"
>INFORMIX-OnLine Version 7.24.UC3 -- On-Line -- Up 2 days 18:03:34 --
>3094784 K
>bytes
>
>Dbspaces
>address number flags fchunk nchunks flags owner name
>7e03a100 1 1 1 1 N informix rootdbs
[SNIP]
That's a lot of disk. Not exactly evenly used, is it?
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