Is there a way to dump the tstate of a cpu? That doesn't seem to be present in the kstat cpu_info.
-- jdh Anup Pemmaiah wrote: > current_freq_Hz in "kstat cpu_info" gives the current freq of the > processor from which you > can get the current P State of the processor. > > HTH > Anup > > julia harper wrote: >> >> Is there any way to simply dump the pstate of a cpu at a single >> particular moment, rather than getting a pretty picture presentation >> that gets updated on some interval? For example, a command such as: >> >> $ cpupstate -c 2 >> 5 >> >> to get a snapshot of cpu 2's current pstate (which is currently at >> pstate 5). >> >> Basically I'm looking for the equivalant to the cpufreq-info tool that >> is available on Linux. >> >> -- jdh >> >> >> Rafael Vanoni wrote: >>> I've uploaded a .tar file to our website with x86 binaries of the >>> latest development version. These include the --cpu option. >>> >>> http://opensolaris.org/os/project/tesla/Work/Powertop/powertop.9364.tar >>> >>> Rafael >>> >>> julia harper wrote: >>>> I just tried running >>>> powertop -c 2 >>>> >>>> and got a help message saying this is invalid: >>>> >>>> # powertop -c2 >>>> powertop: illegal option -- c >>>> OpenSolaris PowerTOP version 1.1 (C) 2009 Intel Corporation >>>> >>>> Usage: powertop [option] >>>> -d, --dump [count] Read wakeups count times and print list of >>>> top offenders >>>> -t, --time [interval] Default time to gather data in seconds [1-100s] >>>> -v, --verbose Verbose mode, reports kernel cyclic activity >>>> -h, --help Show this help message >>>> >>>> >>>> I'm running opensolaris 2009.06 pre-release (build 111a): >>>> # uname -a >>>> SunOS ban23uut175 5.11 snv_111a i86pc i386 i86pc Solaris >>>> >>>> >>>> -- jdh >>>> >>>> >>>> Rafael Vanoni wrote: >>>>> Hi Julia >>>>> >>>>> Yes, the default behavior is to average p-state residency between >>>>> CPUs. The information is gathered through DTrace and kstats. >>>>> There's a --cpu (or simply -c) option that will let you observe a >>>>> specific processor. >>>>> >>>>> Note that there's a bug in the p-state report (6829404), which will >>>>> be fixed today. I can send you an updated binary once it goes back, >>>>> if you'd like. >>>>> >>>>> Thanks, >>>>> Rafael >>>>> >>>>> julia harper wrote: >>>>>> >>>>>> I have a powertop question. I just tried it on opensolaris, and >>>>>> can't figure out how to show the per cpu p-states. It just shows >>>>>> one number, and there doesn't seem to be an option for more info. >>>>>> Is that number an average of the per cpus p-states? My system has >>>>>> 2 Nehalem cpus in it (16 hw threads). >>>>>> >>>>>> -- jdh >>>>>> >>>>>> >>>>>> --------------------- >>>>>> Julia Harper, julia.harper at sun.com >>>>>> >>>>>> _______________________________________________ >>>>>> pm-discuss mailing list >>>>>> pm-discuss at opensolaris.org >>>>>> http://mail.opensolaris.org/mailman/listinfo/pm-discuss >>>>> >>>> >>> >> -- --------------------- Julia Harper, julia.harper at sun.com
