Note that measures doesn't just look at the environment variable. It actually parses it in the same way as Gist_init(), so it tells you what will actually be measured. For instance, if you specify
GIST_MEASURES=sgi0:sgi1then measures only marks sgi1, since only one of these can be recorded on an SGI (and Libgist takes the last one).
sgi31are the SGI hardware measures, as in
man perfex. You may tell Gist to record up to one measure from
sgi15and upt to one from
sgi0 Cycles sgi1 Issued instructions sgi2 Issued loads sgi3 Issued stores sgi4 Issued store conditionals sgi5 Failed store conditionals sgi6 Decoded branches sgi7 Quadwords written back from scache sgi8 Correctable scache data array ECC errors sgi9 Primary instruction cache misses sgi10 Secondary instruction cache misses sgi11 Instruction misprediction from scache way prediction table sgi12 External interventions sgi13 External invalidations sgi14 Virtual coherency conditions sgi15 Graduated instructions sgi16 Cycles sgi17 Graduated instructions sgi18 Graduated loads sgi19 Graduated stores sgi20 Graduated store conditionals sgi21 Graduated floating point instructions sgi22 Quadwords written back from primary data cache sgi23 TLB misses sgi24 Mispredicted branches sgi25 Primary data cache misses sgi26 Secondary data cache misses sgi27 Data misprediction from scache way prediction table sgi28 External intervention hits in scache sgi29 External invalidation hits in scache sgi30 Store/prefetch exclusive to clean block in scache sgi31 Store/prefetch exclusive to shared block in scacheThe various
ru_*are the operating system measures provided by the IRIX
getrusage()system call (see
man getrusage). There is no limitation on the recording of these IRIX measures.
ru_utime the total amount of time spent executing in user mode ru_stime the total amount of time spent in the system executing on behalf of the process ru_maxrss the maximum resident set size utilized (in kilobytes) ru_minflt the number of page faults serviced without any I/O activity; here I/O activity is avoided by reclaiming a page frame from the list of pages awaiting reallocation. ru_majflt page faults requiring I/O ru_nswap the number of times a process was swapped out of main memory ru_inblock block input operations ru_oublock block output operations ru_msgsnd messages sent over sockets ru_msgrcv messages received from sockets ru_nsignals signals received ru_nvcsw voluntary context switches (usually to await availablility of a resource) ru_nivcsw involuntary context switches