Join IIUG
 for   
 

Informix News
18 Nov 13 - ZDNet - Top 20 mobile skills in demand... Read
09 Sep 13 - telecompaper - Shaspa and Tatung have shown a new smart home platform at Ifa in Berlin. Powered by the IBM Informix software... Read
06 Sep 13 - IBM data magazine - Mission Accomplished - Miami, Florida will be the backdrop for the 2014 IIUG Informix Conference... Read
01 Feb 13 - IBM Data Magazine - Are your database backups safe? Lester Knutsen (IBM Champion) writes about database back up safety using "archecker"... Read
14 Nov 12 - IBM - IBM's Big Data For Smart Grid Goes Live In Texas... Read
3 Oct 12 - The Financial - IBM and TransWorks Collaborate to Help Louisiana-Pacific Corporation Achieve Supply Chain Efficiency... Read
28 Aug 12 - techCLOUD9 - Splunk kicks up a SaaS Storm... Read
10 Aug 12 - businessCLOUD9 - Is this the other half of Cloud monitoring?... Read
3 Aug 12 - IBM data management - Supercharging the data warehouse while keeping costs down IBM Informix Warehouse Accelerator (IWA) delivers superior performance for in-memory analytics processing... Read
2 Aug 12 - channelbiz - Oninit Group launches Pay Per Pulse cloud-based service... Read
28 May 12 - Bloor - David Norfolk on the recent Informix benchmark "pretty impressive results"... Read
23 May 12 - DBTA - Informix Genero: A Way to Modernize Informix 4GL Applications... Read
9 Apr 12 - Mastering Data Management - Upping the Informix Ante: Advanced Data Tools... Read
22 Mar 12 - developerWorks - Optimizing Informix database access... Read
14 Mar 12 - BernieSpang.com - International Informix User Group set to meet in San Diego... Read
1 Mar 12 - IBM Data Management - IIUG Heads West for 2012 - Get ready for sun and sand in San Diego... Read
1 Mar 12 - IBM Data Management - Running Informix on Solid-State Drives.Speed Up Database Access... Read
26 Feb 12 - BernieSpan.com - Better results, lower cost for a broad set of new IBM clients and partners... Read
24 Feb 12 - developerWorks - Informix Warehouse Accelerator: Continuous Acceleration during Data Refresh... Read
6 Feb 12 - PRLOG - Informix port delivers unlimited database scalability for popular SaaS application ... Read
2 Feb 12 - developerWorks - Loading data with the IBM Informix TimeSeries Plug-in for Data Studio... Read
1 Feb 12 - developerWorks - 100 Tech Tips, #47: Log-in to Fix Central... Read
13 Jan 12 - MC Press online - Informix Dynamic Server Entices New Users with Free Production Edition ... Read
11 Jan 12 - Computerworld - Ecologic Analytics and Landis+Gyr -- Suitors Decide to Tie the Knot... Read
9 Jan 12 - planetIDS.com - DNS impact on Informix / Impacto do DNS no Informix... Read
8 Sep 11 - TMCnet.com - IBM Offers Database Solution to Enable Smart Meter Data Capture... Read
1 Aug 11 - IBM Data Management Magazine - IIUG user view: Happy 10th anniversary to IBM and Informix... Read
8 Jul 11 - Database Trends and Applications - Managing Time Series Data with Informix... Read
31 May 11 - Smart Grid - The meter data management pitfall utilities are overlooking... Read
27 May 11 - IBM Data Management Magazine - IIUG user view: Big data, big time ( Series data, warehouse acceleration, and 4GLs )... Read
16 May 11 - Business Wire - HiT Software Announces DBMoto for Enterprise Integration, Adds Informix. Log-based Change Data Capture... Read
21 Mar 11 - Yahoo! Finance - IBM and Cable&Wireless Worldwide Announce UK Smart Energy Cloud... Read
14 Mar 11 - MarketWatch - Fuzzy Logix and IBM Unveil In-Database Analytics for IBM Informix... Read
11 Mar 11 - InvestorPlace - It's Time to Give IBM Props: How many tech stocks are up 53% since the dot-com boom?... Read
9 Mar 11 - DBTA - Database Administration and the Goal of Diminishing Downtime... Read
2 Feb 11 - DBTAs - Informix 11.7 Flexible Grid Provides a Different Way of Looking at Database Servers... Read
27 Jan 11 - exactsolutions - Exact to Add Informix Support to Database Replay, SQL Monitoring Solutions... Read
25 Jan 11 - PR Newswire - Bank of China in the UK Works With IBM to Become a Smarter, Greener Bank... Read
12 Oct 10 - Database Trends and Applications - Informix 11.7: The Beginning of the Next Decade of IBM Informix... Read
20 Sep 10 - planetIDS.com - ITG analyst paper: Cost/Benefit case for IBM Informix as compared to Microsoft SQL Server... Read
20 Jul 10 - IBM Announcements - IBM Informix Choice Edition V11.50 helps deploy low-cost scalable and reliable solutions for Apple Macintosh and Microsoft Windows... Read
20 Jul 10 - IBM Announcements - Software withdrawal: Elite Support for Informix Ultimate-C Edition... Read
24 May 10 - eWeek Europe - IBM Supplies Database Tech For EU Smart Grid... Read
23 May 10 - SiliconIndia - IBM's smart metering system allows wise use of energy... Read
21 May 10 - CNET - IBM to help people monitor energy use... Read
20 May 10 - ebiz - IBM Teams With Hildebrand To Bring Smart Metering To Homes Across Britain... Read
19 May 10 - The New Blog Times - Misurare il consumo energetico: DEHEMS è pronto... Read
19 May 10 - ZDNet - IBM software in your home? Pact enables five-city smart meter pilot in Europe... Read
17 March 10 - ZDNet (blog) David Morgenstern - TCO: New research finds Macs in the enterprise easier, cheaper to manage than... Read
17 March 2010 - Virtualization Review - ...key components of Big Blue's platform to the commercial cloud such as its WebSphere suite of application ser vers and its DB2 and Informix databases... Read
10 February 2010 - The Wall Street Journal - International Business Machines is expanding an initiative to win over students and professors on its products. How do they lure the college crowd?... Read


End of Support Dates

IIUG on Facebook IIUG on Twitter

[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

IDS Forum

RE: Performance issue after 732 to 94fc6 upgra....

Posted By: Simmons, Keith
Date: Tuesday, 13 June 2006, at 3:59 a.m.

In Response To: Re: Performance issue after 732 to 94fc6 upgrade p (Doug Fossmeyer)

Doug

See embedded comments below

Keith

-> -----Original Message-----
-> From: Doug Fossmeyer [mailto:DougF@SpokaneSchools.org]
-> Sent: Tuesday, June 13, 2006 1:04 AM
-> To: ids@iiug.org
-> Subject: Re: Performance issue after 732 to 94fc6 upgra.... [6934]
->
->
->
-> Part 2 of posting
->
-> onstat -c
->
-> IBM Informix Dynamic Server Version 9.40.FC6 -- On-Line --
-> Up 2 days 19:54:35
-> -- 2325280 Kbytes
->
-> Configuration File: /dbms/informix9/etc/onconfig.std
-> #************************************************************
-> **************
-> #
-> # INFORMIX SOFTWARE, INC.
-> #
-> # Title: onconfig.std
-> # Description: Informix Dynamic Server 9.4 Configuration Parameters
-> #************************************************************
-> **************
->
-> # Root Dbspace Configuration
->
-> ROOTNAME rootdbs # Root dbspace name
-> ROOTPATH /dbms/links/rootdbs9 # Path for device containing
-> root dbspace
-> ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes)
-> ROOTSIZE 30000 # Size of root dbspace (Kbytes)
->
-> # Disk Mirroring Configuration Parameters
->
-> MIRROR 0 # Mirroring flag (Yes = 1, No = 0)
-> MIRRORPATH # Path for device containing mirrored root
-> MIRROROFFSET 0 # Offset into mirrored device (Kbytes)
->
-> # Physical Log Configuration
->
-> PHYSDBS plogdbs94 # Location (dbspace) of physical log
-> PHYSFILE 127000 # Physical log file size (Kbytes)
->
-> # Logical Log Configuration
->
-> LOGFILES 101 # Number of logical log files
-> LOGSIZE 2000 # Logical log size (Kbytes)
->
-> # Diagnostics
->
-> MSGPATH /dbms/informix9/log/online.log # System message log
-> file path
-> CONSOLE /dev/console # System console message path
->
-> # To automatically backup logical logs, edit alarmprogram.sh and set
-> # BACKUPLOGS=Y
-> ALARMPROGRAM /dbms/informix9/etc/no_log.sh # Alarm program path
-> TBLSPACE_STATS 0 # Maintain tblspace statistics
->
-> # System Archive Tape Device
->
-> TAPEDEV /dev/null # Tape device path
-> TAPEBLK 256 # Tape block size (Kbytes)
-> TAPESIZE 70000000 # Maximum amount of data to put on tape (Kbytes)
->
-> # Log Archive Tape Device
->
-> LTAPEDEV /dr_data/log.bak # Log tape device path
-> LTAPEBLK 256 # Log tape block size (Kbytes)
-> LTAPESIZE 70000000 # Max amount of data to put on log tape (Kbytes)
->
-> # Optical
->
-> STAGEBLOB # Informix Dynamic Server staging area
->
-> # System Configuration
->
-> SERVERNUM 1 # Unique id corresponding to a OnLine instance
-> DBSERVERNAME online9 # Name of default database server
-> DBSERVERALIASES test9 # List of alternate dbservernames
-> NETTYPE ipcshm,2,100,CPU
-> NETTYPE soctcp,2,100,NET
-> #NETTYPE ipcshm,4,250,CPU
-> DEADLOCK_TIMEOUT 120 # Max time to wait of lock in distributed env.
-> RESIDENT 4294967295 # Forced residency flag (Yes = 1, No = 0)
Why this figure, alternatives are 1 or 0 ??

->
-> MULTIPROCESSOR 1 # 0 for single-processor, 1 for multi-processor
->
-> #turn this off if using VPCLASS
-> #NUMCPUVPS 3 # Number of user (cpu) vps
-> SINGLE_CPU_VP 0 # If non-zero, limit number of cpu vps to one
-> #turn these 3 off if using above VPCLASS
-> #NOAGE 0 # Process aging
-> #AFF_SPROC 1 # Affinity start processor
-> #AFF_NPROCS 0 # Affinity number of processors
->
-> # Shared Memory Parameters
->
-> LOCKS 200000 # Maximum number of locks
-> BUFFERS 900000 # Maximum number of shared buffers
-> #turn this off if using VPCLASS
-> #NUMAIOVPS 3 # Number of IO vps
-> PHYSBUFF 320 # Physical log buffer size (Kbytes)
-> LOGBUFF 64 # Logical log buffer size (Kbytes)
-> CLEANERS 8 # Number of buffer cleaner processes
Should be the same as LRUS

-> SHMBASE 0x0 # Shared memory base address
-> SHMVIRTSIZE 327680
-> SHMADD 32768 # Size of new shared memory segments (Kbytes)
-> SHMTOTAL 0 # Total shared memory (Kbytes). 0=>unlimited
-> CKPTINTVL 300 # Check point interval (in sec)
-> LRUS 128 # Number of LRU queues
Perceived wisdom indicates 127 is a better figure

-> LRU_MAX_DIRTY 5.000000 # LRU percent dirty begin cleaning limit
-> LRU_MIN_DIRTY 2.000000 # LRU percent dirty end cleaning limit
-> TXTIMEOUT 0x12c # Transaction timeout (in sec)
-> STACKSIZE 64 # Stack size (Kbytes)
Try a larger figure here (256)

->
-> # Dynamic Logging
-> # DYNAMIC_LOGS:
-> # 2 : server automatically add a new logical log when
-> necessary. (ON)
-> # 1 : notify DBA to add new logical logs when necessary. (ON)
-> # 0 : cannot add logical log on the fly. (OFF)
-> #
-> # When dynamic logging is on, we can have higher values for
-> LTXHWM/LTXEHWM,
-> # because the server can add new logical logs during long
-> transaction
-> rollback.
-> # However, to limit the number of new logical logs being
-> added, LTXHWM/LTXEHWM
-> # can be set to smaller values.
-> #
-> # If dynamic logging is off, LTXHWM/LTXEHWM need to be set
-> to smaller values
-> # to avoid long transaction rollback hanging the server due
-> to lack of logical
-> # log space, i.e. 50/60 or lower.
->
-> DYNAMIC_LOGS 0
Not for performance, but set this to 1

-> LTXHWM 40
-> LTXEHWM 50
->
-> # System Page Size
-> # BUFFSIZE - OnLine no longer supports this configuration parameter.
-> # To determine the page size used by OnLine on your platform
-> # see the last line of output from the command, 'onstat -b'.
->
-> # Recovery Variables
-> # OFF_RECVRY_THREADS:
-> # Number of parallel worker threads during fast recovery or
-> an offline
-> restore.
-> # ON_RECVRY_THREADS:
-> # Number of parallel worker threads during an online restore.
->
-> OFF_RECVRY_THREADS 10 # Default number of offline worker threads
-> ON_RECVRY_THREADS 1 # Default number of online worker threads
->
-> # Data Replication Variables
-> DRINTERVAL 30 # DR max time between DR buffer flushes (in sec)
-> DRTIMEOUT 30 # DR network timeout (in sec)
-> DRLOSTFOUND /usr/informix/etc/dr.lostfound # DR lost+found file path
->
-> # CDR Variables
-> CDR_EVALTHREADS 1,2 # evaluator threads (per-cpu-vp,additional)
-> CDR_DSLOCKWAIT 5 # DS lockwait timeout (seconds)
-> CDR_QUEUEMEM 4096 # Maximum amount of memory for any CDR
-> queue (Kbytes)
-> CDR_NIFCOMPRESS 0 # Link level compression (-1 never, 0 none, 9 max)
-> CDR_SERIAL 0,0 # Serial Column Sequence
-> CDR_DBSPACE # dbspace for syscdr database
-> CDR_QHDR_DBSPACE # CDR queue dbspace (default same as catalog)
-> CDR_QDATA_SBSPACE # List of CDR queue smart blob spaces
->
-> # CDR_MAX_DYNAMIC_LOGS
-> # -1 => unlimited
-> # 0 => disable dynamic log addition
-> # >0 => limit the no. of dynamic log additions with the
-> specified value.
-> # Max dynamic log requests that CDR can make within one
-> server session.
->
-> CDR_MAX_DYNAMIC_LOGS 0 # Dynamic log addition disabled by default
->
-> # Backup/Restore variables
-> BAR_ACT_LOG /dbms/informix9/log/bar_act.log
->
-> # ON-Bar Log file - not in /tmp please
-> BAR_DEBUG_LOG /dbms/informix9/log/informix/bar_dbug.log
->
-> # ON-Bar Debug Log - not in /tmp please
-> BAR_MAX_BACKUP 0
-> BAR_RETRY 1
-> BAR_NB_XPORT_COUNT 10
-> BAR_XFER_BUF_SIZE 31
-> RESTARTABLE_RESTORE on
-> BAR_PROGRESS_FREQ 0
->
-> # Informix Storage Manager variables
-> ISM_DATA_POOL ISMData
-> ISM_LOG_POOL ISMLogs
->
-> # Read Ahead Variables
-> # was 16 and 8, using Belevue settings for test
-> RA_PAGES 32 # Number of pages to attempt to read ahead
-> RA_THRESHOLD 30 # Number of pages left before next group
From onstat -p your read ahead figures seem low, try setting THRESHOLD to 8

->
-> # DBSPACETEMP:
-> # OnLine equivalent of DBTEMP for SE. This is the list of dbspaces
-> # that the OnLine SQL Engine will use to create temp tables etc.
-> # If specified it must be a colon separated list of dbspaces
-> that exist
-> # when the OnLine system is brought online. If not specified, or if
-> # all dbspaces specified are invalid, various ad hoc queries
-> will create
-> # temporary files in /tmp instead.
->
-> #DBSPACETEMP # Default temp dbspaces
-> DBSPACETEMP
-> tempdbs6:tempdbs7:tempdbs8:tempdbs9:tempdbs10:ifasdbs94temp
->
-> # DUMP*:
-> # The following parameters control the type of diagnostics
-> information which
-> # is preserved when an unanticipated error condition
-> (assertion failure)
-> occurs
-> # during OnLine operations.
-> # For DUMPSHMEM, DUMPGCORE and DUMPCORE 1 means Yes, 0 means No.
->
-> DUMPDIR /tmp # Preserve diagnostics in this directory
-> DUMPSHMEM 0 # Dump a copy of shared memory
-> DUMPGCORE 0 # Dump a core image using 'gcore'
-> DUMPCORE 0 # Dump a core image (Warning:this aborts OnLine)
-> DUMPCNT 1 # Number of shared memory or gcore dumps for
->
-> # a single user's session
->
-> FILLFACTOR 90 # Fill factor for building indexes
->
-> # method for OnLine to use when determining current time
-> USEOSTIME 0 # 0: use internal time(fast), 1: get time from OS(slow)
->
-> # Parallel Database Queries (pdq)
-> MAX_PDQPRIORITY 10 # Maximum allowed pdqpriority
-> DS_MAX_QUERIES 2 # Maximum number of decision support queries
Try as high as 128

-> DS_TOTAL_MEMORY 17392 # Decision support memory (Kbytes)
If you have the physical memory try this up to 1024000

-> DS_MAX_SCANS 20 # Maximum number of decision support scans
Try much higher (1048576)

-> DATASKIP off
-> # OPTCOMPIND
-> # 0 => Nested loop joins will be preferred (where
-> # possible) over sortmerge joins and hash joins.
-> # 1 => If the transaction isolation mode is not
-> # "repeatable read", optimizer behaves as in (2)
-> # below. Otherwise it behaves as in (0) above.
-> # 2 => Use costs regardless of the transaction isolation
-> # mode. Nested loop joins are not necessarily
-> # preferred. Optimizer bases its decision purely
-> # on costs.
-> OPTCOMPIND 1 # To hint the optimizer
->
-> DIRECTIVES 1 # Optimizer DIRECTIVES ON (1/Default) or OFF (0)
-> ONDBSPACEDOWN 2 # Dbspace down option: 0 = CONTINUE, 1 =
-> ABORT, 2 = WAIT
-> OPCACHEMAX 0 # Maximum optical cache size (Kbytes)
->
-> # HETERO_COMMIT (Gateway participation in distributed transactions)
-> # 1 => Heterogeneous Commit is enabled
-> # 0 (or any other value) => Heterogeneous Commit is disabled
-> HETERO_COMMIT 0
->
-> SBSPACENAME # Default smartblob space name - this is where blobs
->
-> # go if no sbspace is specified when the smartblob is
->
-> # created. It is also used by some datablades as
->
-> # the location to put their smartblobs.
-> SYSSBSPACENAME # Default smartblob space for use by the Informix
->
-> # Server. This is used primarily for Informix Server
->
-> # system statistics collection.
->
-> BLOCKTIMEOUT 3600 # Default timeout for system block
-> SYSALARMPROGRAM /dbms/informix9/etc/evidence.sh # System
-> Alarm program path
->
-> # Optimization goal: -1 = ALL_ROWS(Default), 0 = FIRST_ROWS
-> OPT_GOAL -1
->
-> ALLOW_NEWLINE 0 # embedded newlines(Yes = 1, No = 0 or
-> anything but 1)
->
-> VPCLASS CPU,num=3,aff=1-3,noage
-> VPCLASS AIO,num=4,aff=0-3,noage
->

***********************************************************************************************
This message is sent in strict confidence for the addressee only. It may contain legally privileged information. The contents are not to be disclosed to anyone other than the addressee. Unauthorised recipients are requested to preserve this confidentiality and to advise the sender immediately of any error in transmission.

This footnote also confirms that this email message has been swept for the presence of computer viruses, however we cannot guarantee that this message is free from such problems.
***********************************************************************************************

Messages In This Thread

[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

IDS Forum is maintained by Administrator with WebBBS 5.12.