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DMPCNTANAL(1) Retro Project Manual DMPCNTANAL(1) NAME dmpcntanal - analyze dmpcnt data SYNOPSIS dmpcntanal [OPTION]... FILE dmpcntanal --help DESCRIPTION Reads a list of CPU performance counter raw data, usually generated via a rw11::pc_lsta command, and generates human-readable reports. OPTIONS --cstate show the CPU state columns, which give in percent the fraction of clock cycles spend in different CPU states: cp console port handling, mostly rbus processing. km>0 kernel mode at priority > 0, interrupt handling or inter- rupt lock-out km=0 kernel mode at priority == 0 wait idling in a WAIT instruction sm supervisor mode sum user mode --cevents show the CPU events columns Min/s instruction rate in MHz vfetc vector-fetch rate, the sum of traps, exceptions, and in- terrupts. irupt interrupt rate i/b instruction per branch --clk clock rate on MHz, counting only cycles when CPU running. In normal operation this is equivalent to the system clock rate. --cpi show the CPU cycle/instruction column. --cpb show the CPU cycle/branch column. --cache show all cache columns. r/i number of read requests per instruction. w/i number of write requests per instruction. rhit read hit rate in %. whit write hit rate in %. rwt average number of wait cycles per memory read (in miss case). wwt average number of wait cycles per memory write (from backpressure). wt/i average number of memory wait cycles per instruction. --chit show cache columns rhit, whit and wt/i, subset of --cache. --ibus show all ibus columns. rdkH ibus read rate in kHz. wrkH ibus write rate in kHz. wt/r average number of ibus wait cycles (read and write com- bined). --rbus show all rbus columns. rdkH ibus read rate in kHz. wrkH ibus write rate in kHz. wt/r average number of ibus wait cycles (read and write com- bined). --raw=clist show raw data of the counters given in the comma-separated list of counter names clist. --dat=clist show data rate of the counters given in the comma-separated list of counter names clist. --fmt=hdr,[fmt],[mul],num[,den] add custom column with a scaled counter rate or a scaled counter ratio specified with hdr text for header. The length if the header must be equal or less than the width of the format. fmt format in the form like w.p with a single-digit field width w and single-digit precision p. If p is 0 no deci- mal point is printed. If omitted 4.1 is assumed. mul multiplier, given as integer of floating-point number. If omitted 1. is assumed. num name of numerator counter den name of denominator counter. If specified the ratio num/den is printed, if omitted the rate num is printed. --sum=nam[,from[,to]] allows to determine averages for a given time interval with nam name printed in the 1st column, up to 6 characters al- lowed. from start time of averaging, if omitted start at begin. to end time of averaging, if omitted sum to the end. --tot add line with average values for the whole dataset, short for -sum=total. --cpu short for -cstate -cevent -chit. If no option which generates an output column is given and a -cpu style output is generated. --all short for -cstate -cevent -cache -ibus -rbus. --hpl=n print header after n lines. --help print full help text and exit. COLUMN DEFINITIONS All standard columns generated via options like -cstate can also be created via the -fmt option with the following parameters name format mul numerator denominator cp 4.1 100. cpu_cpbusy cpu_tot km>0 4.1 100. cpu_km_prix cpu_tot km=0 4.1 100. cpu_km_pri0 cpu_tot wait 4.1 100. cpu_km_wait cpu_tot sm 4.1 100. cpu_sm cpu_tot um 4.1 100. cpu_um cpu_tot Min/s 5.2 1.e-6 cpu_idec vfetch 5.0 1. cpu_vfetch irupt 5.0 1. cpu_irupt i/b 4.1 1. cpu_idec cpu_pcload r/i 4.2 1. ca_rd cpu_idec w/i 4.2 1. ca_wr cpu_idec rhit 4.1 100. ca_rdhit ca_rd whit 4.1 100. ca_wrhit ca_wr rwt 4.1 1. ca_rdwait ca_rdmem wwt 4.1 1. ca_wrwait ca_wrmem wt/i 4.1 1. ca_totwt cpu_idec rdkH 4.2 1.e-3 ib_rd wrkH 4.2 1.e-3 ib_wr wt/r 4.1 1. ib_busy ib_tot rdkH 4.2 1.e-3 rb_rd wrkH 4.2 1.e-3 rb_wr wt/r 4.1 1. rb_busy rb_tot EXAMPLES dmpcntanal -cstate -cevent -tot pc_dmpcnt_xxx.dat reads the file pc_dmpcnt_xxx.dat and generates a report with the -cstate and -cevent columns sets. The input file is typically generated by a ti_w11 Tcl command like rw11::pc_clear rw11::pc_start rw11::pc_lsta pc_dmpcnt_xxx.dat The output might look like time ------ cpu state in % ------- ----- cpu events ----- sec cp km>0 km=0 wait sm um Min/s vfetc irupt i/b ... 38.0 0.7 10.4 19.2 4.0 0.0 65.7 8.95 1319 712 4.2 39.0 0.4 5.1 9.9 1.4 0.0 83.1 9.76 1021 373 4.0 40.0 0.7 9.4 18.6 3.6 0.0 67.8 8.60 1135 616 4.5 41.0 0.4 4.6 9.5 1.1 0.0 84.4 9.81 1190 313 4.1 42.0 0.6 7.1 18.0 3.4 0.0 70.8 9.33 1153 611 3.9 43.0 0.5 7.6 15.0 4.1 0.0 72.7 9.15 1278 540 4.1 44.0 0.6 9.2 15.8 3.0 0.0 71.4 8.87 1267 509 4.4 45.0 0.6 7.4 16.7 3.2 0.0 72.1 8.96 1276 552 4.2 ... time ------ cpu state in % ------- ----- cpu events ----- sec cp km>0 km=0 wait sm um Min/s vfetc irupt i/b total 0.5 7.0 17.0 19.7 0.0 55.8 7.28 1453 471 3.9 SEE ALSO ti_w11(1) AUTHOR Walter F.J. Mueller <W.F.J.Mueller@gsi.de> Retro Project 2018-10-21 DMPCNTANAL(1)
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