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IDS Forum

Config Help

Posted By: JOHN LAWRIE
Date: Tuesday, 17 July 2012, at 4:57 p.m.

We've recently taken over a IDS server that host the DB for an inhouse developed application. I'm convinced that what processes are taking for every and previously have been considered acceptable performance are due to poor configs. I'm not a DBA just a systems administrator. There are somethings that I've noticed that are definitely in my opinion glaring and was hoping to see if someone could just throw a set of wiser eyes on it before I go marching off in the wrong direction with troubleshooting. Basically I'm never not getting 100% cpu usage with either 4 or 5 vcpu (informix) and my ready queues are never empty. ranging from 5-20 items on a 1 second refresh. I've managed to improve my onstat -g glo inefficiencies by reducing vcpus but (you'll see the onconfig show the creation of 5)

The host is a Vmware ESXi 5.0 4x 6-Core AMD 8431 2.4 GHz cpu. The virtual machine running IDS is allocated 6 vCPU and has 6 gb RAM. It's running 64 bit Solaris 10 10/09 and Informix 11.5.FC6 most connections are as the same user from about 9-16 different Windows workstations.

CONFIG:
ROOTNAME rootdbs
ROOTPATH /export/home/informix/dbs/rootdbs
ROOTOFFSET 0
ROOTSIZE 248000
MIRROR 0
MIRRORPATH
MIRROROFFSET 0

PHYSFILE 300000
PLOG_OVERFLOW_PATH $INFORMIXDIR/tmp
PHYSBUFF 128

LOGFILES 40
LOGSIZE 10000
DYNAMIC_LOGS 2
LOGBUFF 64

LTXHWM 50
LTXEHWM 60

MSGPATH $INFORMIXDIR/tmp/db_abc.log
CONSOLE $INFORMIXDIR/tmp/db_abc.con

TBLTBLFIRST 0
TBLTBLNEXT 0
TBLSPACE_STATS 0

DBSPACETEMP temp1:temp2:temp3:temp4
SBSPACETEMP

SBSPACENAME
SYSSBSPACENAME
ONDBSPACEDOWN 2

SERVERNUM 0
DBSERVERNAME db_abc
DBSERVERALIASES db_abc_tcp

NETTYPE ipcshm,1,50,CPU
LISTEN_TIMEOUT 60
MAX_INCOMPLETE_CONNECTIONS 1024
FASTPOLL 1

MULTIPROCESSOR 1
VPCLASS cpu,num=5,noage
#VPCLASS cpu,num=7,noage
VP_MEMORY_CACHE_KB 0
SINGLE_CPU_VP 0

#VPCLASS aio,num=1
CLEANERS 127
AUTO_AIOVPS 1
DIRECT_IO 0

LOCKS 2000000
DEF_TABLE_LOCKMODE row

RESIDENT 0
SHMBASE 0x10A000000L
SHMVIRTSIZE 1600000
SHMADD 262144
EXTSHMADD 8192
SHMTOTAL 0
SHMVIRT_ALLOCSEG 0,3
SHMNOACCESS

#CKPTINTVL 900
CKPTINTVL 300
AUTO_CKPTS 0
RTO_SERVER_RESTART 0
BLOCKTIMEOUT 3600

CONVERSION_GUARD 1
RESTORE_POINT_DIR $INFORMIXDIR/tmp

TXTIMEOUT 300
DEADLOCK_TIMEOUT 60
HETERO_COMMIT 0

TAPEDEV /dev/tapedev
TAPEBLK 32
TAPESIZE 0

LTAPEDEV /dev/tapedev
#LTAPEDEV /dev/null
LTAPEBLK 32
LTAPESIZE 0

BAR_ACT_LOG $INFORMIXDIR/tmp/bar_act.log
BAR_DEBUG_LOG $INFORMIXDIR/tmp/bar_dbug.log
BAR_DEBUG 0
BAR_MAX_BACKUP 0
BAR_RETRY 1
BAR_NB_XPORT_COUNT 20
BAR_XFER_BUF_SIZE 31
RESTARTABLE_RESTORE ON
BAR_PROGRESS_FREQ 0
BAR_BSALIB_PATH
BACKUP_FILTER
RESTORE_FILTER
BAR_PERFORMANCE 0

ISM_DATA_POOL ISMDiskData
ISM_LOG_POOL ISMDiskLogs

DD_HASHSIZE 31
DD_HASHMAX 10

DS_HASHSIZE 31
DS_POOLSIZE 127

PC_HASHSIZE 31
PC_POOLSIZE 127

STMT_CACHE 2
STMT_CACHE_HITS 0
STMT_CACHE_SIZE 2048
STMT_CACHE_NOLIMIT 0
STMT_CACHE_NUMPOOL 3

USEOSTIME 0
STACKSIZE 64
ALLOW_NEWLINE 0
USELASTCOMMITTED NONE

FILLFACTOR 90
MAX_FILL_DATA_PAGES 0
BTSCANNER num=1,threshold=5000,rangesize=-1,alice=6,compression=default
ONLIDX_MAXMEM 5120

MAX_PDQPRIORITY 100
DS_MAX_QUERIES
DS_TOTAL_MEMORY
DS_MAX_SCANS 1048576
DS_NONPDQ_QUERY_MEM 128
DATASKIP

OPTCOMPIND 2
DIRECTIVES 1
EXT_DIRECTIVES 0
OPT_GOAL -1
IFX_FOLDVIEW 0
AUTO_REPREPARE 1

RA_PAGES 64
RA_THRESHOLD 16
BATCHEDREAD_TABLE 0

EXPLAIN_STAT 1
#SQLTRACE level=low,ntraces=1000,size=2,mode=global

#DBCREATE_PERMISSION informix
#DB_LIBRARY_PATH
IFX_EXTEND_ROLE 1
SECURITY_LOCALCONNECTION
UNSECURE_ONSTAT
ADMIN_USER_MODE_WITH_DBSA
ADMIN_MODE_USERS
SSL_KEYSTORE_LABEL

PLCY_POOLSIZE 127
PLCY_HASHSIZE 31
USRC_POOLSIZE 127
USRC_HASHSIZE 31

STAGEBLOB
OPCACHEMAX 0

ENCRYPT_HDR
ENCRYPT_SMX
ENCRYPT_CDR 0
ENCRYPT_CIPHERS
ENCRYPT_MAC
ENCRYPT_MACFILE
ENCRYPT_SWITCH

CDR_EVALTHREADS 1,2
CDR_DSLOCKWAIT 5
CDR_QUEUEMEM 4096
CDR_NIFCOMPRESS 0
CDR_SERIAL 0
CDR_DBSPACE
CDR_QHDR_DBSPACE
CDR_QDATA_SBSPACE
CDR_MAX_DYNAMIC_LOGS 0
CDR_SUPPRESS_ATSRISWARN

DRAUTO 0
DRINTERVAL 30
DRTIMEOUT 30
HA_ALIAS
DRLOSTFOUND $INFORMIXDIR/etc/dr.lostfound
DRIDXAUTO 0
LOG_INDEX_BUILDS
SDS_ENABLE
SDS_TIMEOUT 20
SDS_TEMPDBS
SDS_PAGING
UPDATABLE_SECONDARY 0
FAILOVER_CALLBACK
TEMPTAB_NOLOG 0
DELAY_APPLY 0
STOP_APPLY 0
LOG_STAGING_DIR

ON_RECVRY_THREADS 1
OFF_RECVRY_THREADS 10

DUMPDIR $INFORMIXDIR/tmp
DUMPSHMEM 1
DUMPGCORE 0
DUMPCORE 0
DUMPCNT 1

ALARMPROGRAM $INFORMIXDIR/etc/alarmprogram.sh
ALRM_ALL_EVENTS 0
STORAGE_FULL_ALARM 600,3
SYSALARMPROGRAM $INFORMIXDIR/etc/evidence.sh

RAS_PLOG_SPEED 14620
RAS_LLOG_SPEED 856

EILSEQ_COMPAT_MODE 0

QSTATS 0
WSTATS 0

#VPCLASS jvp,num=1
JVPJAVAHOME $INFORMIXDIR/extend/krakatoa/jre/
JVPHOME $INFORMIXDIR/extend/krakatoa
JVPPROPFILE $INFORMIXDIR/extend/krakatoa/.jvpprops
JVPLOGFILE $INFORMIXDIR/jvp.log
#JDKVERSION 1.5
JVPJAVALIB /lib/amd64
JVPJAVAVM server
#JVPARGS -verbose:jni
#JVPCLASSPATH $INFORMIXDIR/extend/krakatoa/krakatoa_g.jar:$INFORMIXDIR/extend/krakatoa/jdbc_g.jar
JVPCLASSPATH $INFORMIXDIR/extend/krakatoa/krakatoa.jar:$INFORMIXDIR/extend/krakatoa/jdbc.jar

BUFFERPOOL default,buffers=10000,lrus=8,lru_min_dirty=50.000000,lru_max_dirty=60.500000
BUFFERPOOL size=2K,buffers=600000,lrus=128,lru_min_dirty=1.000000,lru_max_dirty=2.000000
AUTO_LRU_TUNING 1

-------------------------------------------------------------------------------
THIS IS ~2.5 HOURS AFTER RESET STATS
-------------------------------------------------------------------------------
onstat -g glo

MT global info:
sessions threads vps lngspins
1235 1383 12 67

sched calls thread switches yield 0 yield n yield forever
total: 195789061 147288992 111978958 1215348 41953722
per sec: 24647 22644 11132 136 7183

Virtual processor summary:
class vps usercpu syscpu total
cpu 4 31910.76 2983.98 34894.74
aio 2 0.17 0.32 0.49
tli 1 491.21 380.67 871.88
lio 1 0.09 0.16 0.25
pio 1 0.09 0.16 0.25
adm 1 1.19 0.45 1.64
msc 1 7.38 3.12 10.50
fifo 1 0.09 0.16 0.25
total 12 32410.98 3369.02 35780.00

Individual virtual processors:
vp pid class usercpu syscpu total Thread Eff
1 973 cpu 7902.40 799.57 8701.97 8964.92 97%
2 974 adm 1.19 0.45 1.64 0.00 0%
3 975 cpu 7997.71 730.14 8727.85 8963.22 97%
4 976 cpu 8013.60 717.50 8731.10 8963.23 97%
5 977 cpu 7997.05 736.77 8733.82 8963.25 97%
7 979 lio 0.09 0.16 0.25 0.00 0%
8 980 pio 0.09 0.16 0.25 0.00 0%
9 981 aio 0.09 0.16 0.25 0.00 0%
10 982 msc 7.38 3.12 10.50 19.35 54%
11 983 fifo 0.09 0.16 0.25 0.00 0%
12 984 aio 0.08 0.16 0.24 0.00 0%
13 985 tli 491.21 380.67 871.88 NA NA

tot 32410.98 3369.02 35780.00

onstat -p

IBM Informix Dynamic Server Version 11.50.FC6 -- On-Line -- Up 14 days 20:37:14 -- 3477504 Kbytes

Profile
dskreads pagreads bufreads %cached dskwrits pagwrits bufwrits %cached
254436304 272478044 9343755483 97.28 711774 1763798 8323939 91.74

isamtot open start read write rewrite delete commit rollbk
4405537541 72311073 109128678 3970104855 2337699 33971 62907 136143 1708

gp_read gp_write gp_rewrt gp_del gp_alloc gp_free gp_curs
0 0 0 0 0 0 0

ovlock ovuserthread ovbuff usercpu syscpu numckpts flushes
0 0 0 32709.24 3399.55 60 46

bufwaits lokwaits lockreqs deadlks dltouts ckpwaits compress seqscans
7602300 0 5790771082 0 0 189 124199 188600

ixda-RA idx-RA da-RA RA-pgsused lchwaits
9543205 4055316 229509228 242725831 410002

onstat -g iov

IBM Informix Dynamic Server Version 11.50.FC6 -- On-Line -- Up 14 days 20:37:52 -- 3477504 Kbytes

AIO I/O vps:
class/vp/id s io/s totalops dskread dskwrite dskcopy wakeups io/wup errors tempops
fifo 11 0 i 0.0 0 0 0 0 0 0.0 0 0
kio -1 0 i 1010.0 9173986 9052271 121715 0 5907231 1.6 0 0
kio -1 1 i 1027.7 9334846 9163289 171557 0 5793440 1.6 0 0
kio -1 2 i 991.0 9001385 8808992 192393 0 5649694 1.6 0 0
kio -1 4 i 1020.7 9270692 9137953 132739 0 5850144 1.6 0 0
msc 10 0 i 12.8 116650 0 0 0 115964 1.0 0 10772302
aio 9 0 i 0.0 0 0 0 0 0 0.0 0 0
aio 12 1 i 0.0 0 0 0 0 0 0.0 0 0
pio 8 0 i 0.0 0 0 0 0 0 0.0 0 0
lio 7 0 i 0.0 0 0 0 0 0 0.0 0 0

onstat -u

1358 active, 1664 total, 1576 maximum concurrent

onstat -g seg

IBM Informix Dynamic Server Version 11.50.FC6 -- On-Line -- Up 14 days 20:41:05 -- 3477504 Kbytes

Segment Summary:
id key addr size ovhd class blkused blkfree
0 52564801 10a000000 1652555776 19799296 R 403398 58
1 52564802 16c800000 1638924288 19207936 V 372072 28056
2 52564803 1ce300000 1048576 13552 M 138 118
3 52564804 1ce400000 268435456 3147376 V 5639 59897
Total: - - 3560964096 - - 781247 88129

Messages In This Thread

  • Config Help
    JOHN LAWRIE -- Tuesday, 17 July 2012, at 4:57 p.m.

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