Hi,
We are facing performance degraded when running Universe 10.0.0 in AIX 5L
5.2.
A bit intro on hardware specs. We are using pSeries 650 running on SMP 2
Power4 processor with 4GB of RAM, 4GB Paging size and RAID5 SSA Hard Disk.
My Universe configuration as below:
Current tunable parameter settings:
MFILES = 300
T30FILE = 200
OPENCHK = 1
WIDE0 = 0x3dc00000
UVSPOOL = /uvspool1
UVTEMP = /uvtmp1
SCRMIN = 3
SCRMAX = 5
SCRSIZE = 512
QDEPTH = 16
HISTSTK = 99
QSRUNSZ = 2000
QSBRNCH = 4
QSDEPTH = 8
QSMXKEY = 32
TXMODE = 0
LOGBLSZ = 512
LOGBLNUM = 8
LOGSYCNT = 0
LOGSYINT = 0
TXMEM = 32
OPTMEM = 64
SELBUF = 4
ULIMIT = 128000
FSEMNUM = 23
GSEMNUM = 97
PSEMNUM = 64
FLTABSZ = 11
GLTABSZ = 75
RLTABSZ = 75
RLOWNER = 300
PAKTIME = 5
NETTIME = 5
QBREAK = 1
VDIVDEF = 1
UVSYNC = 1
BLKMAX = 131072
PICKNULL = 0
SYNCALOC = 1
MAXRLOCK = 74
ISOMODE = 1
PKRJUST = 0
PROCACMD = 0
PROCRCMD = 0
PROCPRMT = 0
ALLOWNFS = 0
CSHDISPATCH = /bin/csh
SHDISPATCH = /bin/sh
DOSDISPATCH = NOT_SUPPORTED
LAYERSEL = 0
OCVDATE = 0
MODFPTRS = 1
THDR512 = 0
UDRMODE = 0
UDRBLKS = 0
MAXERRLOGENT = 100
JOINBUF = 4095
64BIT_FILES = 0
TSTIMEOUT = 60
PIOPENDEFAULT = 0
MAXKEYSIZE = 255
SMISDATA = 0
EXACTNUMERIC = 15
MALLOCTRACING = 0
CENTURYPIVOT = 1930
SPINTRIES = 0
SPINSLEEP = 10000
CONVERT_EURO = 0
SYSTEM_EURO = 164
TERM_EURO = 164
SQLNULL = 128
When the uv restarted it run fine for a day before it used up all the CPU
and memory resources. A fast check on 'topas' show CPU resources used up for
Kernel and User. There are no free resources on Wait and Idle. Around 70% of
the CPU resources used for User and 30% used for Kernel.
On memory side, seem all the physical memory had been consumed up. Even
Paging space also been used. A quick snapshot on the memory from 'topas' as
below:
MEMORY
Real,MB 4095
% Comp 22.4
% Noncomp 76.2
% Client 75.1
PAGING SPACE
Size,MB 4096
% Used 1.4
% Free 98.5
When all the physical resources are fully occupied, the Universe processing
become slow. The only thing I can do now is to restart Universe when the
performance degraded?
Are there any performance tuning we need to do on the OS to prevent this
issue? Or is there any known issue with this version of Universe?
Please assist me to solve this problem.
Regard's,
Foo
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