It looks like the memcache stuff may not be working right. But at the very least it is sucking up huge amounts of CPU.. This is the output of oprofile during one of our test runs.. hstar_ is the routine in GAMES doing computation. We appear to be spending more time looking up and freeing memory registration cache information than waiting for IO or computing. CPU: AMD64 processors, speed 1403.2 MHz (estimated) Counted CPU_CLK_UNHALTED events (Cycles outside of halt state) with a unit mask of 0x00 (No unit mask) count 100000 samples % app name symbol name 6361527 26.3906 gamess.Feb222006R5.x hstar_ 5029662 20.8654 gamess.Feb222006R5.x memcache_lookup_cover 4185769 17.3645 no-vmlinux (no symbols) 4147846 17.2072 gamess.Feb222006R5.x bufferRead 1969618 8.1709 gamess.Feb222006R5.x memcache_memfree 799027 3.3147 libc-2.3.6.so (no symbols) 206162 0.8553 libpscrt.so.1 memset.pathscale.opteron 197544 0.8195 gamess.Feb222006R5.x __job_time_mgr_add 106939 0.4436 mthca.so (no symbols) 92519 0.3838 gamess.Feb222006R5.x ddot_ 68023 0.2822 gamess.Feb222006R5.x sotran_ 52222 0.2166 oprofiled (no symbols) 41085 0.1704 libpthread-2.3.6.so pthread_mutex_lock 32711 0.1357 gamess.Feb222006R5.x PINT_process_request |
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