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: Extra Shared Memory MESSAGE Segments

Posted By: Madison Pruet
Date: Monday, 2 November 2009, at 3:17 p.m.

In Response To: Extra Shared Memory MESSAGE Segments (Clifton Bean)

Are you seeing a performance issue related to shm connections? You
specified 19 segments in the onconfig by using NETTYPE ipcshm,19,50,CPU=
.
This will create 19 message segments with space for 50 connections each=
.

You can combine them a bit if you want, and that might be an advantage =
so
that you reduce the total number of memory segments. However, in order=
to
do that and have the same capacity, you would need to increase the size=
of
each segment.

=

From: "Clifton Bean" <clifton_bean@hotmail.com> =

=

To: ids@iiug.org =

=

Date: 11/02/2009 01:31 PM =

=

Subject: Extra Shared Memory MESSAGE Segments [17870] =

=

Sent by: ids-bounces@iiug.org =

=

IDS 11.50.FC5 AIX 5.3

I am trying to figure out why the Message Segment decided to split itse=
lf
into
19 smaller pieces ... and if there is anything wrong with it being in s=
o
many
pieces or if I should strive to put them, ala Humpty Dumpty, back toget=
her
again ... and how?

Thanks in advance.

Clifton

Online.log:

Requested shared memory segment size rounded from 548KB to 560KB
03:13:34 Dynamically allocated new message shared memory segment (size
560KB)
03:13:34 Memory sizes:resident:2761408 KB, virtual:3201120 KB, no SHMTO=
TAL
limit

$ONCONFIG Parameters:

VPCLASS cpu,num=3D19,aff=3D(1-9),noage

NETTYPE ipcshm,19,50,CPU # corresponding nettype for cpu vpclass
NETTYPE soctcp,10,250,NET # no need for corresponding vpclass

-> onstat -g seg

IBM Informix Dynamic Server Version 11.50.FC5 -- On-Line -- Up 11:00:10=
--
5972048 Kbytes

Segment Summary:
id key addr size ovhd class blkused blkfree
1048579 52564801 700000010000000 2827681792 33570328 R* 690349 3
1048578 52564802 7000000c0000000 3276800000 38401840 V 581789 218211
1048577 52564803 700000190000000 573440 7984 M 140 0
4 52564804 7000001a0000000 573440 7984 M 140 0
5 52564805 7000001b0000000 573440 7984 M 140 0
6 52564806 7000001c0000000 573440 7984 M 139 1
7 52564807 7000001d0000000 573440 7984 M 135 5
8 52564808 7000001e0000000 573440 7984 M 135 5
9 52564809 7000001f0000000 573440 7984 M 135 5
10 5256480a 700000200000000 573440 7984 M 135 5
11 5256480b 700000210000000 573440 7984 M 135 5
12 5256480c 700000220000000 573440 7984 M 135 5
13 5256480d 700000230000000 573440 7984 M 135 5
14 5256480e 700000240000000 573440 7984 M 135 5
15 5256480f 700000250000000 573440 7984 M 135 5
16 52564810 700000260000000 573440 7984 M 135 5
17 52564811 700000270000000 573440 7984 M 135 5
18 52564812 700000280000000 573440 7984 M 135 5
19 52564813 700000290000000 573440 7984 M 135 5
20 52564814 7000002a0000000 573440 7984 M 135 5
21 52564815 7000002b0000000 573440 7984 M 135 5
Total: - - 6115377152 - - 1274722 218290

(* segment locked in memory)

-> onstat -g glo

IBM Informix Dynamic Server Version 11.50.FC5 -- On-Line -- Up 10:58:52=
--
5972048 Kbytes

MT global info:
sessions threads vps lngspins
2017 2152 38 0

sched calls thread switches yield 0 yield n yield forever
total: 146123725 64660569 87511186 1953442 8765693
per sec: 7534 7279 252 102 149

Virtual processor summary:
class vps usercpu syscpu total
cpu 19 5979.75 947.66 6927.41
aio 5 1.08 5.73 6.81
lio 1 0.08 0.20 0.28
pio 1 0.08 0.21 0.29
adm 1 3.71 4.77 8.48
soc 10 113.13 320.73 433.86
msc 1 12.84 4.22 17.06
total 38 6110.67 1283.52 7394.19

Individual virtual processors:
vp pid class usercpu syscpu total Thread Eff
1 78810 cpu 2219.96 381.83 2601.79 4272.51 60%
2 95468 adm 3.71 4.77 8.48 0.00 0%
3 86220 cpu 2226.48 333.36 2559.84 4282.16 59%
4 53908 cpu 880.21 151.26 1031.47 1744.49 59%
5 90588 cpu 304.57 52.11 356.68 559.29 63%
6 82910 cpu 141.73 12.81 154.54 209.78 73%
7 50262 cpu 64.07 6.04 70.11 97.68 71%
8 102636 cpu 45.59 3.34 48.93 71.90 68%
9 94688 cpu 55.71 2.66 58.37 73.51 79%
10 87010 cpu 31.81 1.69 33.50 45.98 72%
11 91360 cpu 7.39 0.60 7.99 11.95 66%
12 49834 cpu 0.64 0.30 0.94 3.37 27%
13 98788 cpu 0.62 0.27 0.89 2.26 39%
14 91110 cpu 0.18 0.21 0.39 1.98 19%
15 99562 cpu 0.11 0.18 0.29 0.35 83%
16 106714 cpu 0.12 0.20 0.32 0.58 55%
17 102888 cpu 0.10 0.18 0.28 0.28 100%
18 95210 cpu 0.11 0.18 0.29 0.29 100%
19 103660 cpu 0.11 0.18 0.29 0.29 100%
20 57862 cpu 0.24 0.26 0.50 2.25 22%
21 99310 lio 0.08 0.20 0.28 0.28 100%
22 107760 pio 0.08 0.21 0.29 0.29 100%
23 111858 aio 0.56 2.78 3.34 12.72 26%
24 115956 msc 12.84 4.22 17.06 17.31 98%
25 120054 aio 0.25 2.32 2.57 2.63 97%
26 124152 soc 11.79 32.80 44.59 NA NA
27 107002 soc 8.14 22.95 31.09 NA NA
28 103420 soc 28.65 90.19 118.84 NA NA
29 110846 soc 4.96 12.82 17.78 NA NA
30 128000 soc 9.25 25.22 34.47 NA NA
31 110850 soc 7.07 19.29 26.36 NA NA
32 107268 soc 6.57 16.66 23.23 NA NA
33 132102 soc 6.85 19.72 26.57 NA NA
34 114696 soc 7.56 20.80 28.36 NA NA
35 114954 soc 22.29 60.28 82.57 NA NA
36 136206 aio 0.10 0.23 0.33 0.33 100%
37 165034 aio 0.10 0.23 0.33 1.10 30%
38 177362 aio 0.07 0.17 0.24 1.06 22%

tot 6110.67 1283.52 7394.19

_________________________________________________________________
New Windows 7: Find the right PC for you.

http://www.microsoft.com/windows/pc-scout/default.aspx?CBID=3Dwl&ocid=3D=
PID24727::T:WLMTAGL:ON:WL:en-US:WWL_WIN_pcscout:112009...

***********************************************************************=
********

Forum Note: Use "Reply" to post a response in the discussion forum.

=

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.