Hello All
We use an reporting solution which uses SYBASE ASE for management data and SYBASE IQ for reporting data.
While launching the reports we are finding the reports are loading very slow when multiple users are connected.
We have 8 CPU cores and 48 GB Physical memory running on RHEL Linux 6.x on VM environment.
SYBASE IQ database file system is mounted on SAN drive and is been accessed as cluster file system.
Sybase IQ db version is,
Sybase IQ/15.4.0.3046/141204/P/ESD 5/Enterprise Linux64 - x86_64 - 2.6.18-194.el5/64bit/2014-12-04 17:24:15
We checked and found that number of user connections supported are not more than 50 by sybase IQ, so we installed
an IQ patch which will increase the number of user connections.
Even after that we saw slight increase in performance, but it did not fit our requirements.
Attached SYBASE.cfg file and our IQ DB startup parameters are,
-gc 20
-gd all
-gl all
-cl 256m -ch 1024m
-gm 100
-gp 4096
-ti 10
-iqgovern 20
-gn 100
-iqnumbercpus 8
-iqmt 1024
-iqtraceflags 2
-iqmc 26624
-iqtc 13312
-s local1
-p 16000
-iqmsgsz 32
-iqmsgnum 2
-zr SQL
-zs 33554432
Had attached SYBASE ASE sp_sysmon output.
This test has been performed with 5 users.
I am not sure how to trace SYBASE IQ, but sp_iqconnection call gives 32 rows, which should mean 31 connections are made to SYBASE IQ db.
Please let us know how to further fine-tune SYBASE ASE and IQ database.
Thanks
Ramesh