Re: [LEDE-DEV] MT7621: 2 or 4 CPUs?
Thanks Daniel, I also found it in the datasheet: MIPS MT Application Specific Extension (ASE) - Support for 2 Virtual Processing Elements (VPEs) per CORE - One Thread Context (TC) per VPE Regards, Gaetano On Fri, Jul 15, 2016 at 11:07 AM, Daniel Golle wrote: > Hi Gaetano, > > On Fri, Jul 15, 2016 at 11:01:12AM +0200, Gaetano Catalli wrote: >> Hello, >> >> I'm a bit confused about the number of CPUs of MT7621 SoC. >> From the MT7621 datasheet: >> >> "The MT7621 router-on-a-chip includes a 880 MHz MIPS 1004Kc CPU dual-core >> ..." >> >> So why does /proc/cpuinfo show 4 cpus? > > MIPS MT is similar to Intel's HyperThreading on x86. > > https://imgtec.com/mips/architectures/multi-threading/ > > ... "MT can make a single processor core appear to an SMP operating > system like two separate cores." > > > Cheers > > Daniel > >> >> Regards. >> >> -- >> gaetano catalli >> >> ___ >> Lede-dev mailing list >> Lede-dev@lists.infradead.org >> http://lists.infradead.org/mailman/listinfo/lede-dev -- gaetano catalli ___ Lede-dev mailing list Lede-dev@lists.infradead.org http://lists.infradead.org/mailman/listinfo/lede-dev
Re: [LEDE-DEV] MT7621: 2 or 4 CPUs?
Hi Gaetano, On Fri, Jul 15, 2016 at 11:01:12AM +0200, Gaetano Catalli wrote: > Hello, > > I'm a bit confused about the number of CPUs of MT7621 SoC. > From the MT7621 datasheet: > > "The MT7621 router-on-a-chip includes a 880 MHz MIPS 1004Kc CPU dual-core ..." > > So why does /proc/cpuinfo show 4 cpus? MIPS MT is similar to Intel's HyperThreading on x86. https://imgtec.com/mips/architectures/multi-threading/ ... "MT can make a single processor core appear to an SMP operating system like two separate cores." Cheers Daniel > > Regards. > > -- > gaetano catalli > > ___ > Lede-dev mailing list > Lede-dev@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/lede-dev ___ Lede-dev mailing list Lede-dev@lists.infradead.org http://lists.infradead.org/mailman/listinfo/lede-dev
[LEDE-DEV] MT7621: 2 or 4 CPUs?
Hello, I'm a bit confused about the number of CPUs of MT7621 SoC. >From the MT7621 datasheet: "The MT7621 router-on-a-chip includes a 880 MHz MIPS 1004Kc CPU dual-core ..." So why does /proc/cpuinfo show 4 cpus? Regards. -- gaetano catalli ___ Lede-dev mailing list Lede-dev@lists.infradead.org http://lists.infradead.org/mailman/listinfo/lede-dev