Mercurial > hg > graal-jvmci-8

comparison src/share/vm/runtime/os.cpp @ 17839:5cf196cc5405

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8026334: hs_err improvement: Print elapsed time in a humanly readable format Reviewed-by: coleenp, dsamersoff Contributed-by: masato.yoshida@oracle.com
author dbuck
date Sat, 05 Apr 2014 23:38:24 -0700
parents 752ba2e5f6d0
children 7384f6a12fc1
comparison
equal deleted inserted replaced
17838:eb82175e7fbb 17839:5cf196cc5405
927 st->cr(); 927 st->cr();
928 pd_print_cpu_info(st); 928 pd_print_cpu_info(st);
929 } 929 }
930 930
931 void os::print_date_and_time(outputStream *st) { 931 void os::print_date_and_time(outputStream *st) {
932 const int secs_per_day = 86400;
933 const int secs_per_hour = 3600;
934 const int secs_per_min = 60;
935
932 time_t tloc; 936 time_t tloc;
933 (void)time(&tloc); 937 (void)time(&tloc);
934 st->print("time: %s", ctime(&tloc)); // ctime adds newline. 938 st->print("time: %s", ctime(&tloc)); // ctime adds newline.
935 939
936 double t = os::elapsedTime(); 940 double t = os::elapsedTime();
937 // NOTE: It tends to crash after a SEGV if we want to printf("%f",...) in 941 // NOTE: It tends to crash after a SEGV if we want to printf("%f",...) in
938 // Linux. Must be a bug in glibc ? Workaround is to round "t" to int 942 // Linux. Must be a bug in glibc ? Workaround is to round "t" to int
939 // before printf. We lost some precision, but who cares? 943 // before printf. We lost some precision, but who cares?
940 st->print_cr("elapsed time: %d seconds", (int)t); 944 int eltime = (int)t; // elapsed time in seconds
945
946 // print elapsed time in a human-readable format:
947 int eldays = eltime / secs_per_day;
948 int day_secs = eldays * secs_per_day;
949 int elhours = (eltime - day_secs) / secs_per_hour;
950 int hour_secs = elhours * secs_per_hour;
951 int elmins = (eltime - day_secs - hour_secs) / secs_per_min;
952 int minute_secs = elmins * secs_per_min;
953 int elsecs = (eltime - day_secs - hour_secs - minute_secs);
954 st->print_cr("elapsed time: %d seconds (%dd %dh %dm %ds)", eltime, eldays, elhours, elmins, elsecs);
941 } 955 }
942 956
943 // moved from debug.cpp (used to be find()) but still called from there 957 // moved from debug.cpp (used to be find()) but still called from there
944 // The verbose parameter is only set by the debug code in one case 958 // The verbose parameter is only set by the debug code in one case
945 void os::print_location(outputStream* st, intptr_t x, bool verbose) { 959 void os::print_location(outputStream* st, intptr_t x, bool verbose) {