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Displaying posts with tag: amd (reset)
Jul
11
2018
AMD EPYC Performance Testing… or Don’t get on the wrong side of SystemD
Posted by MySQL Performance Blog on Wed 11 Jul 2018 11:52 UTC
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Ever since AMD released their EPYC CPU for servers I wanted to test it, but I did not have the opportunity until recently, when Packet.net started offering bare metal servers for a reasonable price. So I started a couple of instances to test Percona Server for MySQL under this CPU. In this benchmark, I discovered some interesting discrepancies in performance between  AMD and Intel CPUs when running under systemd .

The set up

To test CPU performance, I used a read-only in-memory sysbench OLTP benchmark, as it burns CPU cycles and no IO is performed by Percona Server.

For this benchmark I used Packet.net c2.medium.x86 instances powered by AMD EPYC …

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Jan
23
2018
20-30% Performance Hit from the Spectre Bug Fix on Ubuntu
Posted by MySQL Performance Blog on Tue 23 Jan 2018 23:43 UTC
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In this blog post, we’ll look at the performance hit from the Spectre bug fix on Ubuntu.

Recently we measured the performance penalty from the Meltdown fix on Ubuntu servers. It turned out to be negligible.

Today, Ubuntu made a Spectre bug fix on Ubuntu available, shipped in kernel 4.4.0-112. As with the Meltdown fix, we measured the effect of this update. Unfortunately, we observed a major performance penalty on MySQL workloads with this new kernel.

Our benchmark used the following:

System:

  • CPU:
    • 2 x Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz (Codename Haswell)
    • /proc/cpuinfo has 48 …
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Oct
06
2009
451 CAOS Links 2009.10.06
Posted by The 451 Group on Tue 06 Oct 2009 09:12 UTC
Tags:
Oracle, links, software, Linux, patents, microsoft, Yahoo, sun, Google, opensource, Portland, Pentaho, Red Hat, SQL Server, 451 group, 451caostheory, 451group, caostheory, matt aslett, mattaslett, matthew aslett, matthewaslett, open-source, The 451 Group, the451group, Zimbra, Benchmark Capital, Zmanda, Marten Mickos, JasperSoft, hadoop, alfresco, OSI, fiveruns, amd, savio rodrigues, android, free software foundation, funambol, OW2, open-xchange, Open-Core, SFLC, cloudera, bilski, daniel chalef, ESB, roberto galoppini, lucidera, BT, openlogic, intalio, mulesoft, codeplex foundation, Andy Updegrove, barrelfish, boycott-boycottnovell, clearview, Construction and Sanitation, Cyanogen, document viewer, EU data protection, european parliament, intange, london stock exchange, monitoringforge, mulse, myfunambol, new york times, objectivity, open solutions alliance, open source initiative, openproj, organic labelling, OXtender, patentability, Peru's Ministry of Housing, pixelux, serena, sixapart, Steve Kondik, Supreme court, talend on demand, tradelect, typepad, unisys, workthink, zmanda cloud, MySQL

Patents. M&A. Adoption. Business strategies. And more.

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“Tracking the open source news wires, so you don’t have to.”

This bumper edition of 451 CAOS Links is brought to you courtesy of the Open World Forum’s temperamental wireless connection.

Patents
# Red Hat urged the Supreme Court to to make clear that it excludes software from patentability, while the SFLC and the FSF also filed briefs with the US Supreme Court arguing against software patents.

Investment and M&A
# The WSJ …

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Nov
07
2008
451 CAOS Links 2008.11.07
Posted by The 451 Group on Fri 07 Nov 2008 17:27 UTC
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A busy week for Sun includes new product releases and an annual shareholders’ meeting. Microsoft tries to unseat open source with BizSpark for entrepreneurs. Who is making money from open source? Obama: Open source President? And more.

Press releases
IBM, Sun Microsystems Launch ODF Toolkit Union To Grow Adoption, Community and Software Innovation Sun Microsystems

Sun Unveils New Systems And Storage Solutions For MySQL Sun Microsystems

Microsoft Jump-Starts Global Entrepreneurs With BizSpark Microsoft

…

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Apr
23
2008
451 CAOS Links - 2008.04.22
Posted by The 451 Group on Wed 23 Apr 2008 04:59 UTC
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Microsoft and Novell extend collaboration to China. IDC sees open source growing in importance with end users. rPath to use SUSE Linux for appliances. (and more)

Microsoft and Novell Extend Reach of Interoperability Collaboration to China, Microsoft / Novell (Press Release)

Open Source Software Grows in Importance to End-User Organizations Providing Rising Services Opportunity for Quality Assurance and Testing, IDC Survey Reveals, IDC (Press Release)

rPath to OEM SUSE Linux Enterprise Server from Novell for Appliances, rPath (Press …

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Showing entries 1 to 5