Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.java.programmer > #28643
| Newsgroups | comp.lang.java.programmer |
|---|---|
| Date | 2014-06-03 03:26 -0700 |
| References | <de5dcb91-d280-463d-86f9-3ffb658d391f@googlegroups.com> <6e41fef8-de83-4da3-85be-59b41262aee0@googlegroups.com> |
| Message-ID | <a4ebc7ce-3824-4449-ae04-7f82379c0612@googlegroups.com> (permalink) |
| Subject | Re: why running multiple instances of the same program is faster than running single instance? |
| From | Rupert Smith <rupertlssmith@googlemail.com> |
On Tuesday, June 3, 2014 11:24:38 AM UTC+1, Rupert Smith wrote: > If your processes read from files, they could be IO bound, and not using much CPU, resulting in the CPU running at a lower clock speed. Running a second one may be using more CPU, pushing up the clock speed. > > > > A hyper-threaded CPU will be more efficient with 2 single-threaded processes running, as pipeline stalls on one process may get filled in with the other process doing useful work. Try turning hyper-threading off in the BIOS, and setting the CPU to always run at maximum clock speed (performance mode), and see how they compare then. Rupert
Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
why running multiple instances of the same program is faster than running single instance? www <xsli2@yahoo.com> - 2014-06-02 08:12 -0700
Re: why running multiple instances of the same program is faster than running single instance? Joerg Meier <joergmmeier@arcor.de> - 2014-06-02 23:59 +0200
Re: why running multiple instances of the same program is faster than running single instance? Arivald <arivald_@AT_interia_DOT_.pl> - 2014-06-03 13:25 +0200
Re: why running multiple instances of the same program is faster than running single instance? Josip Almasi <joe@vrspace.org> - 2014-06-03 09:40 +0200
Re: why running multiple instances of the same program is faster than running single instance? lipska the kat <lipskathekat@example.com> - 2014-06-03 10:02 +0100
Re: why running multiple instances of the same program is faster than running single instance? Rupert Smith <rupertlssmith@googlemail.com> - 2014-06-03 03:24 -0700
Re: why running multiple instances of the same program is faster than running single instance? Rupert Smith <rupertlssmith@googlemail.com> - 2014-06-03 03:26 -0700
Re: why running multiple instances of the same program is faster than running single instance? Roedy Green <see_website@mindprod.com.invalid> - 2014-06-06 19:50 -0700
csiph-web