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: IDS and P Series

Posted By: Paul Watson
Date: Saturday, 27 August 2011, at 9:56 a.m.

In Response To: Re: IDS and P Series (Art Kagel)

Test, test and then test again :-)

> You are absolutelyu right Paul. The Sun T-class or Niagra processors are
> brain-dead. They were specifically designed to run web servers and other
> Java or C++ style multi-threaded applications that run many many very
> short
> run threads that spend most of their time waiting for other threads to
> coordinate. To accomplish efficiently Sun had to eliminate the pre-fetch
> queues that made modern SMT processors so good at running databases and
> other long running threads/processes. With no pre-fetch queue Informix's
> style of multithreading just is not efficient. Indeed, Oracle has the same
> problem running on Niagra processors - DB2 does best but still does not
> run
> as well on the T-class processors as it does on the traditional SMT
> oriented
> M-class Sparc processors.
>
> While IBM built similar hardware threading into the P6 and P7 processors
> as
> that on the Niagra cores, they did not do away with the pre-fetch queues
> and
> so performance is comparable to or better than a non-threaded P5 processor
> core running at the same speed.
>
> Art
>
> Art S. Kagel
> Advanced DataTools (www.advancedatatools.com)
> Blog: http://informix-myview.blogspot.com/
>
> Disclaimer: Please keep in mind that my own opinions are my own opinions
> and
> do not reflect on my employer, Advanced DataTools, the IIUG, nor any other
> organization with which I am associated either explicitly, implicitly, or
> by
> inference. Neither do those opinions reflect those of other individuals
> affiliated with any entity with which I am affiliated nor those of the
> entities themselves.
>
> On Fri, Aug 26, 2011 at 5:34 PM, Paul Watson <paul@oninit.com> wrote:
>
>> I would add the rule of thumb doesn't appear to be valid with latest Sun
>> processors, when I tested last I saw the greatest transaction through
>> put
>> with a one to one relationship with cores and CPU VPs
>>
>> Cheers
>> Paul
>>
>> -----Original Message-----
>> From: ids-bounces@iiug.org [mailto:ids-bounces@iiug.org] On Behalf Of
>> Fernando Nunes
>> Sent: Friday, August 26, 2011 4:28 PM
>> To: ids@iiug.org
>> Subject: Re: IDS and P Series [24741]
>>
>> I would not ignore threads... but in the end it may not be different
>> from
>> your rule.
>> P7 can be configure in SMT-4 and SMT-2. And although not all internal
>> CPU
>> units are in pairs (or more) in each core many of them are.
>> What I blindly agree is that you cannot multiply the number of cores by
>> 4
>> in
>> SMT-4 configured systems. As you could/should not multiply by 2 in SMT-2
>> P6.
>>
>> If you create a graphic of scalability that shows performance vs
>> threads,
>> it
>> will not be a straight line... It will be a curve with quick growth
>> between
>> 1 and 2 threads, and after that the growth will slow down.
>>
>> Different workloads will influence this. For example Java != databases
>>
>> Regards
>>
>> On Fri, Aug 26, 2011 at 6:01 PM, Art Kagel <art.kagel@gmail.com> wrote:
>>
>> > I have experience with one client P7 system and a couple of P6
>> systems.
>> The
>> > P7s are an improvement over the P6. That said I would ignore the
>> hardware
>> > threading and just count cores for configuring Informix. The rule of
>> thumb
>> > stands, even on these machines, one CPU VP per 450-500 MHZ. A big hint
>> is
>> > that IBM licenses Informix by the number of cores, not threads!
>> >
>> > Art
>> > On Aug 26, 2011 12:07 PM, "Peter_Logan@spartanstores.com" <
>> > Peter_Logan@spartanstores.com> wrote:
>> > > Hello ...
>> > >
>> > > I have been asked by my management if IDS will take advantage of the
>> new
>> > P
>> >
>> > > Series chips that are multi threaded. From what I understand a
>> single
>> > > core will have 4 threads that run on it. They are calling it SMT.
>> I'm
>> > > going to guess that IDS would see each thread as a processor .. but
>> > wanted
>> >
>> > > to make sure.
>> > >
>> > > Thanks in advance for any info. I think these are the IBM P 7 series
>> > > chips ...
>> > >
>> > > Peter Logan
>> > > Senior Database Administrator
>> > > Phone: 616/878-8309
>> > >
>> > >
>> > >
>> >
>> >
>> >
>>
>> ****************************************************************************
>> ***
>> >
>> > > Forum Note: Use "Reply" to post a response in the discussion forum.
>> > >
>> >
>> > --90e6ba212393f2226a04ab6b7e49
>> >
>> >
>> >
>> >
>>
>> ****************************************************************************
>> ***
>> > Forum Note: Use "Reply" to post a response in the discussion forum.
>> >
>> >
>>
>> --
>> Fernando Nunes
>> Portugal
>>
>> http://informix-technology.blogspot.com
>> My email works... but I don't check it frequently...
>>
>> --20cf3002555a9b816204ab6f374e
>>
>>
>> ****************************************************************************
>> ***
>> Forum Note: Use "Reply" to post a response in the discussion forum.
>>
>> _____
>>
>> avast! Antivirus <http://www.avast.com> : Outbound message clean.
>>
>> Virus Database (VPS): 110826-1, 08/26/2011
>> Tested on: 8/26/2011 4:34:40 PM
>> avast! - copyright (c) 1988-2011 ALWIL Software.
>>
>>
>>
>>
> *******************************************************************************
>> Forum Note: Use "Reply" to post a response in the discussion forum.
>>
>>
>
> --90e6ba21241d1ebe7604ab70445e
>
>
> *******************************************************************************
> Forum Note: Use "Reply" to post a response in the discussion forum.
>

--
Paul Watson
Tel: +1 913-674-0360
Mob: +1 913-387-7529
Web: www.oninit.com

www.advancedatatools.com

Failure is not as frightening as regret.
If you want to improve, be content to be thought foolish and stupid.

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.