Tru64v5.1B slow and Informix

Hello Gurus.

I know this a tru64 list only, but i think my problem is exactly with it.

The server is an Alpha 1200, 2CPU 533 MHz, 1 GB RAM, 7 SCSI Diskraid with a 
Mylex SCSI Card and mirroring 0+1 only the disk 0, where is the unix.

This server was upgraded from 4.0F to 5.1B and patch 4 applied, also before it 
had Informix IDS7.30, now IDS 9.40.

The people who reinstalled the server didn't take backup of kernel settings 
neither disk setups.

The problem is that before, with 4.0F, this server did a dbimport in 6 hours, 
now, with 5.1B, it finishes in 30+ hours!!!

I've swear have read tuning and performance guide for tru64, and several third 
party papers, but just don't get it, i don't know what else to do, could you 
please help me?

These are the changes i did to default /etc/sysconfigtab

generic:
        msgbuf_size = 4096
vm:
        swapdevice = /dev/disk/dsk0b,/dev/disk/dsk5a,/dev/disk/dsk5e
        vm-swap-eager = 1
        gh_chunks = 0
        gh_fail_if_no_mem = 1
        new_wire_method = 1
        ubc_borrowpercent = 7
        ubc_maxpercent = 10
        ubc_minpercent = 5
        vm_page_free_target = 128
        vm_ubcseqpercent =15
        vm_ubcseqstartpercent = 7
        vm-ubcdirtypercent    = 10
vfs:
        bufcache = 5
        buffer_hash_size = 512
proc:
        maxusers = 768
        max_proc_per_user = 128
        max_threads_per_user = 512
rt:
        aio_max_percent = 3
        aio_task_max_num = 60108
        aio_listio_max_num = 256
        sigqueue_max_num = 256
ipc:
        shm_max = 2147483647
        shm_mni = 150
        shm_seg = 150
        sem_mni = 400
        sem_msl = 1600
        ssm_threshold = 8388608


Thanks

Oxiel

		
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