http://creativecommons.org/licenses/by-sa/2.5/ numa http://swik.net/numa http://swik.net/Oracle/Kevin+Closson%27s+Oracle+Blog/Oracle+Database+10g+10.2.0.4+on+Linux.+A+NUMA+Fix%3F/bvjhe I am not a DBA, but that doesn’t mean I lack respect for how difficult planned upgrades can be in complex Enterprise deployments. If I was a DBA planning an upgrade of my Oracle Database 10g Release 2 database I would be looking forward to 10.2.0.4. From what I’ve seen it looks like a pretty [...] Fri, 30 Nov 2007 10:23:19 -0800 http://swik.net/Oracle/Kevin+Closson%27s+Oracle+Blog/Oracle+on+Opteron+with+Linux-The+NUMA+Angle+%28Part+VI%29.+Introducing+Cyclops./2ixt This is part 6 in a series about Oracle on Opteron-based NUMA servers running Linux. The list of prior installments can be found through my index of NUMA-related posts. In part 5 of the series I discussed using Opteron-based servers with NUMA features disabled in the BIOS. Running an Opteron server (e.g., HP Proliant DL585) in [...] Thu, 05 Apr 2007 13:12:52 -0700 http://swik.net/Oracle/Kevin+Closson%27s+Oracle+Blog/Learn+Danish+Before+You+Learn+About+NUMA/w07j I can’t speak Danish, but I have the next best thing—a Danish friend that speaks English. The Danish arm of Computer Reseller News has a video of Mogens Norgaard (founder of the OakTable Network of which I am glad to be a member). I have no idea whatsoever about what he is discussing, but [...] Thu, 08 Feb 2007 14:46:58 -0800 http://swik.net/Oracle/Kevin+Closson%27s+Oracle+Blog/Oracle+on+Opteron+with+Linux-The+NUMA+Angle+%28Part+V%29.+Introducing+numactl%288%29+and+SUMA.+Is+The+Oracle+x86_64+Linux+Port+NUMA+Aware%3F/wcrv       This blog entry is part five in a series. Please visit here for links to the previous installments. Opteron-Based Servers are NUMA Systems Or are they? It depends on how you boot them. For instance, I have 2 HP DL585 servers clustered with the PolyServe Database Utility for Oracle RAC. I booted one of the servers [...] Fri, 02 Feb 2007 22:36:39 -0800 http://swik.net/Oracle/Kevin+Closson%27s+Oracle+Blog/Oracle+on+Opteron+with+Linux-The+NUMA+Angle+%28Part+III%29.+Introducing+the+Silly+Little+Benchmark./vvv9 In my blog “mini-series” about Oracle on Opteron NUMA, I am about to start covering the Linux 2.6 NUMA API and what it means to Oracle. I will share a lot of statspack information for certain, but first we need to go with micro-benchmark tests. The best micro-benchmark test for analysis of memory latency is [...] Tue, 30 Jan 2007 10:09:08 -0800 http://swik.net/Oracle/Kevin+Closson%27s+Oracle+Blog/Oracle+on+Opteron+with+Linux-The+NUMA+Angle+%28Part+III%29/vsk3 In my blog “mini-series” about Oracle on Opteron NUMA, I am about to start covering the Linux 2.6 NUMA API and what it means to Oracle. I will share a lot of statspack information for certain, but first we need to go with micro-benchmark tests. The best micro-benchmark test for analysis of memory latency is [...] Mon, 29 Jan 2007 18:06:36 -0800 http://swik.net/Oracle/Kevin+Closson%27s+Oracle+Blog/Using+Linux+sched_setaffinity%282%29+To+Bind+Oracle+Processes+To+CPUs/u35p I have been exploring the effect of process migration between CPUs in a multi-core Linux system while running long duration Oracle jobs. While Linux does schedule processes as best as possible for L2 cache affinity, I do see migrations on my HP DL 585 Opteron 850 box. Cache affinity is important, and routine migrations can [...] Tue, 23 Jan 2007 14:07:40 -0800 http://swik.net/Oracle/Kevin+Closson%27s+Oracle+Blog/Oracle+on+Opteron+with+Linux-The+NUMA+Angle+%28Part+II%29/uod0 A little more groundwork. Trust me, the Linux NUMA API discussion that is about to begin and the microbenchmark and Oracle benchmark tests will make a lot more sense with all this old boring stuff behind you. Another Terminology Reminder When discussing NUMA, the term node is not the same as in clusters. Remember that all the [...] Fri, 19 Jan 2007 12:07:42 -0800 http://swik.net/Oracle/Kevin+Closson%27s+Oracle+Blog/Oracle+on+Opteron+with+Linux%E2%80%93The+NUMA+Angle+%28Part+I%29/ukh7 There are Horrible Definitions of NUMA Out There on the Web I want to start blogging about NUMA with regard to Oracle because NUMA has reached the commodity hardware scene with Opteron and Hypertransport technology Yes, I know Opteron has been available for a long time, but it wasn’t until the Linux 2.6 Kernel that there [...] Thu, 18 Jan 2007 14:07:16 -0800 http://swik.net/Oracle/Kevin+Closson%27s+Oracle+Blog/Oracle+on+Opteron%E2%80%93The+NUMA+Angle+%28Part+I%29/ugve Horrible definitions of NUMA out there on the Web I want to start blogging about NUMA with regard to Oracle because NUMA has reached the commodity hardware scene with Opteron and Hypertransport technology Yes, I know Opteron has been available for a long time, but it wasn’t until the Linux 2.6 Kernel that there were legitimate [...] Wed, 17 Jan 2007 18:05:52 -0800 http://swik.net/drbd/del.icio.us+tag+feed/-+Guia+de+Inova%C3%A7%C3%A3o+tecnol%C3%B3gica+em+Cluster+e+Grid/pz3l Ótimo guia para ler sobre cluster e grid - muito bom! Mon, 27 Nov 2006 08:50:04 -0800