.\" Copyright (c) 2015 .\" Netflix Inc. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" $FreeBSD$ .\" .Dd Dec 2, 2014 .Dt PMC_COUNTER_STUDY 1 .Os .Sh NAME .Nm pmc_counter_study .Nd Perform various study's on a systems overall PMC's. .Sh SYNOPSIS .Nm .Sh DESCRIPTION The .Nm The pmc_counter_study program is designed to run various tests against your systems performance. There are roughly 20-22 canned tests that setup specific PMC's and then run various formulas on the output information. These formulas can be found in Intel documentation "Using Intel Vtune amplifier xe on NNN Generation Intel Core Processors". The NNN is either 2nd, 3rd or 4th generation i.e. Sandy Bridge, Ivy Bridge and Haswell. Currently the program only works on these three Intel processor types. You can see the complete list of formula's by running the program with the -H option. If you know a formula name you can run it by typing -e name. If you know a name and want what the formula is you can run the program with -e name -h and the program will not run but it will tell you what that name will do (if known). The -T option can be used to test all PMC's that are known to your system. When running a test you will want to specify -m N where N is the number of 1 second samples to collect and analize (it bounds the time the test runs). Finally for those that have there own ideas on what formulas that you want to run you can type your own formula in with -E "formula". The formula can declare directly the PMC's by name or you can use an abbreviation %NNN. To find out the abbreviations on your system you may run pmc_counter_study -L and it will tell you each PMC name and the abbreviation you can use. An example of a formula of your own might be -E "FP_ASSIST.ANY / INST_RETIRED.ANY_P" -E " %176 / %150". You must have spaces between each entry and you may use paraenthisis to prioritize the operators. Add (+), Subtract (-1), Divide (/) and Multiplication (*) is supported. You may also introduce constant numbers as well. So for example you can do a standard efficency test like -E "UOPS_RETIRED.RETIRE_SLOTS / (4 * CPU_CLK_UNHALTED.THREAD_P)".