From: Oxiel Enrique Contreras Vargas (oxielc@yahoo.it)
Date: Mon Jun 06 2005 - 10:59:52 EDT
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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