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关于组合参数的11.70份国际数据系统可作哪些改动,以尽量提高安保部的性能?
原标题:Which of the IDS 11.70 onconfig parameters can be changed to maximize performance for a DSS app?
  • 时间:2012-05-07 06:54:06
  •  标签:
  • informix

Informix 11.70.TC5DE, Windows Vista with Dual Core Processor, 8GB RAM, 1TB HDD:

During the installation of this server, I specified it was going to be used for a data warehousing application. These are the onconfig parameters the install script generated. Can any of these parameters be changed to maximize the performance of the server?

#(onconfig.ol_informix1170) -  for data warehousing app.

ROOTNAME rootdbs
ROOTPATH C:PROGRA~1IBMInformix11.70OL_INF~2dbspaces
ootdbs.000
ROOTOFFSET 0
ROOTSIZE 312992
MIRROR 0
MIRRORPATH 
MIRROROFFSET 0

PHYSFILE        49152           
PLOG_OVERFLOW_PATH 
PHYSBUFF 512

LOGFILES        6               
LOGSIZE 10000
DYNAMIC_LOGS 2
LOGBUFF 256

LTXHWM 70
LTXEHWM 80

MSGPATH C:PROGRA~1IBMInformix11.70ol_informix1170_1.log
CONSOLE C:PROGRA~1IBMInformix11.70ol_informix1170_1.con

TBLTBLFIRST 0
TBLTBLNEXT 0
TBLSPACE_STATS 1

DBSPACETEMP tempdbs
SBSPACETEMP 

SBSPACENAME sbspace
SYSSBSPACENAME 
ONDBSPACEDOWN 2

SERVERNUM 6
DBSERVERNAME ol_informix1170_1
DBSERVERALIASES dr_informix1170_1

NETTYPE olsoctcp,1,150,NET
LISTEN_TIMEOUT 60
MAX_INCOMPLETE_CONNECTIONS 1024
FASTPOLL 1
NS_CACHE host=900,service=900,user=900,group=900

MULTIPROCESSOR 0
VPCLASS cpu,num=1,noage
VP_MEMORY_CACHE_KB 0
SINGLE_CPU_VP 1

#VPCLASS aio,num=1
CLEANERS 2
AUTO_AIOVPS 1
DIRECT_IO 0

LOCKS 2000
DEF_TABLE_LOCKMODE page

RESIDENT 0
SHMBASE 0xc000000L
SHMVIRTSIZE 209920
SHMADD 6560
EXTSHMADD 8192
SHMTOTAL 0
SHMVIRT_ALLOCSEG 0,3
#SHMNOACCESS 0x70000000-0x7FFFFFFF

CKPTINTVL 300
AUTO_CKPTS 1
RTO_SERVER_RESTART 60

BLOCKTIMEOUT 3600

CONVERSION_GUARD 2
RESTORE_POINT_DIR $INFORMIXDIR	mp

TXTIMEOUT 300
DEADLOCK_TIMEOUT 60

HETERO_COMMIT 0

TAPEDEV \.TAPE0
TAPEBLK 16
TAPESIZE 0

LTAPEDEV 
LTAPEBLK 16
LTAPESIZE 0

BAR_ACT_LOG $INFORMIXDIR	mpar_act.log
BAR_DEBUG_LOG $INFORMIXDIR	mpar_dbug.log
BAR_DEBUG 0
BAR_MAX_BACKUP 0
BAR_RETRY 1
BAR_NB_XPORT_COUNT 20
BAR_XFER_BUF_SIZE 15
RESTARTABLE_RESTORE ON
BAR_PROGRESS_FREQ 0
BAR_BSALIB_PATH 
BACKUP_FILTER 
RESTORE_FILTER 
BAR_PERFORMANCE 0
BAR_CKPTSEC_TIMEOUT 15

ISM_DATA_POOL ISMData
ISM_LOG_POOL ISMLogs

DD_HASHSIZE 31
DD_HASHMAX 10

DS_HASHSIZE 31

DS_POOLSIZE 127

PC_HASHSIZE 31
PC_POOLSIZE 127
PRELOAD_DLL_FILE 

STMT_CACHE 0
STMT_CACHE_HITS 0
STMT_CACHE_SIZE 512
STMT_CACHE_NOLIMIT 0
STMT_CACHE_NUMPOOL 1

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 188928

MAX_PDQPRIORITY 100
DS_MAX_QUERIES 1
DS_TOTAL_MEMORY 188928
DS_MAX_SCANS 1
DS_NONPDQ_QUERY_MEM 188928
DATASKIP 

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

RA_PAGES 64
RA_THRESHOLD 16
BATCHEDREAD_TABLE 1
BATCHEDREAD_INDEX 1
BATCHEDREAD_KEYONLY 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 

PLCY_POOLSIZE 127
PLCY_HASHSIZE 31
USRC_POOLSIZE 127

USRC_HASHSIZE 31

STAGEBLOB 
OPCACHEMAX 0

SQL_LOGICAL_CHAR OFF

SEQ_CACHE_SIZE 10

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_SUPPRESS_ATSRISWARN 
CDR_DELAY_PURGE_DTC 0
CDR_LOG_LAG_ACTION ddrblock
CDR_LOG_STAGING_MAXSIZE 0
CDR_MAX_DYNAMIC_LOGS 0

DRAUTO 0
DRINTERVAL 30
DRTIMEOUT 30
HA_ALIAS 
DRLOSTFOUND $INFORMIXDIRetcdr.lostfound
DRIDXAUTO 0
LOG_INDEX_BUILDS 
SDS_ENABLE 
SDS_TIMEOUT 20
SDS_TEMPDBS 
SDS_PAGING 
SDS_LOGCHECK 0
UPDATABLE_SECONDARY 0
FAILOVER_CALLBACK 
FAILOVER_TX_TIMEOUT 0
TEMPTAB_NOLOG 0
DELAY_APPLY 0
STOP_APPLY 0
LOG_STAGING_DIR 
RSS_FLOW_CONTROL 0
ENABLE_SNAPSHOT_COPY 0
SMX_COMPRESS 0

ON_RECVRY_THREADS 2
OFF_RECVRY_THREADS 5

DUMPDIR $INFORMIXDIR	mp
DUMPSHMEM 1
DUMPGCORE 0
DUMPCORE 0

DUMPCNT 1

ALARMPROGRAM $INFORMIXDIRetcalarmprogram.bat
ALRM_ALL_EVENTS 0
#SYSALARMPROGRAM $INFORMIXDIRetcevidence.bat
STORAGE_FULL_ALARM 600,3

RAS_PLOG_SPEED  10982           
RAS_LLOG_SPEED 0

EILSEQ_COMPAT_MODE 0

QSTATS 0
WSTATS 0

#VPCLASS         MQ,noyield
MQSERVER 
MQCHLLIB 

MQCHLTAB 

#VPCLASS jvp,num=1
#JVPJAVAHOME    $INFORMIXDIRextendkrakatoajre
#JVPHOME        $INFORMIXDIRextendkrakatoa
JVPPROPFILE $INFORMIXDIRextendkrakatoa.jvpprops
JVPLOGFILE $INFORMIXDIRjvp.log
#JDKVERSION    1.5
#JVPJAVALIB     in
#JVPJAVAVM      jvm
#JVPARGS        -verbose:jni
#JVPCLASSPATH  $INFORMIXDIRextendkrakatoakrakatoa_g.jar;$INFORMIXDIRextendkrakatoajdbc_g.jar
JVPARGS -Dcom.ibm.tools.attach.enable=no
JVPCLASSPATH $INFORMIXDIRextendkrakatoakrakatoa.jar;$INFORMIXDIRextendkrakatoajdbc.jar

BUFFERPOOL  default,buffers=10000,lrus=8,lru_min_dirty=50.00,lru_max_dirty=60.50
BUFFERPOOL  size=4K,buffers=13108,lrus=16,lru_min_dirty=70.00,lru_max_dirty=80.00
AUTO_LRU_TUNING 1

USERMAPPING OFF

SP_AUTOEXPAND 1
SP_THRESHOLD 0
SP_WAITTIME 30

DEFAULTESCCHAR 

LOW_MEMORY_RESERVE 0
LOW_MEMORY_MGR 0

REMOTE_SERVER_CFG 
REMOTE_USERS_CFG 

S6_USE_REMOTE_SERVER_CFG 0

GSKIT_VERSION 

NETTYPE drsoctcp,1,150,NET
最佳回答

如果是多处理器机器,则肯定会考虑转载于<代码>。 缩略语

The ONCONFIG parameters of greatest interest to you for DSS are those related to Parallel Data Query, or PDQ. The block that commences with MAX_PDQPRIORITY. It is worth perusing the fine manual on these specifically, because the inter-relationship between them and some other parameters is too complex to go into here.

但实质上,<代码>DS_max_questRIES是随时允许的平行查询的最大数目, DS_met_SCANS确定用于扫描表的IO校对号码。 <代码>DS_TOTAL_MEMORY>确定分配给PDQ处理的记忆量,手册中有一个计算法,显示这些变量和用户的<代码>PDQPRIORITY组合。

您也不妨考虑取消<代码>。 RA_PAGES和RA_THRESHOLD数值——这些数值确定,在分批次之前,有多少页被读为栏目。 如果你再次想赞成桌上的人(通常是你在安全部做的),那么将这些人增加到256人和128人这样的人,可能会改善业绩。

我的经验是使用SMP和MPP的箱子,而不是Windows,因此我不敢肯定你能在多大程度上破坏你的建筑,但这正是你们想要开始的。

我建议确定一个良好的安保部的问询,这种问答时间过长,同时改变一个参数,以便看到这种影响。 www.un.org/Depts/DGACM/index_french.htm

最后一件事——11.7项支持表压缩,而我所看到的测试表明,安全部环境发生了显著的改善,大体读写和书写不正规。

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