On 2/11/2015 12:42 PM, Dawid Weiss wrote: >> IMHO, this calculation should be adjusted so that a 3-core system gets a >> value of 2. > A 3-core system? What happened to one of its, ahem, gems? :)
This is the processor I have: http://www.newegg.com/Product/Product.aspx?Item=N82E16819103683 The X3 chip line consists of 4-core chips that have had one of the cores disabled. Initially AMD did this because sometimes one of the cores would be bad and fail tests, but later they also used it as a way to sell perfectly good 4-core chips at a lower price point, by disabling one of the cores. There's no way to know (aside from testing) why any specific chip is an X3 instead of an X4, but apparently most of the X3 chips on the market have 4 perfectly good cores. The motherboard I'm using will enable the disabled core, but when I enabled the relevant BIOS setting (which also overclocked the chip a little bit), I had stability problems with the machine, so I disabled it and now I'm back down to three cores at the labelled speed. Eventually I will get around to figuring out whether the disabled core is bad or the stability problems were due to overclocking. Is this JVM calculation only done in the carrotsearch randomized testing, or is it also found in JUnit itself? Thanks, Shawn --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
