On 6/2/14, 3:18 PM, Jiri Olsa wrote:
We keep dsos data file descriptors open until their count reaches the half of the current fd open limit (RLIMIT_NOFILE). In this case we close file descriptor of the first opened dso object.We've got overall speedup (24% for my workload) of report: 'perf report --stdio -i perf-test.data' (3 runs) (perf-test.data size was around 12GB) current code: 446,826,474,217 cycles ( +- 0.23% ) 669,435,100,846 instructions ( +- 0.03% ) 266.380674551 seconds time elapsed ( +- 0.37% ) change: 558,345,509,819 cycles ( +- 0.55% ) 817,283,647,637 instructions ( +- 0.03% ) 351.564209617 seconds time elapsed ( +- 0.89% )
message is confusing. Looks like time went up. David -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
