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8234397: add OS uptime information to os::print_os_info output

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Reviewed-by: clanger, dholmes, lucy
This commit is contained in:
Matthias Baesken 2019-12-03 15:17:59 +01:00
parent f67111067e
commit 14391e8046
12 changed files with 78 additions and 0 deletions
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18
src/hotspot/os/bsd/os_bsd.cpp
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@ -168,6 +168,22 @@ julong os::Bsd::available_memory() {
return available;
}
// for more info see :
// https://man.openbsd.org/sysctl.2
void os::Bsd::print_uptime_info(outputStream* st) {
struct timeval boottime;
size_t len = sizeof(boottime);
int mib[2];
mib[0] = CTL_KERN;
mib[1] = KERN_BOOTTIME;
if (sysctl(mib, 2, &boottime, &len, NULL, 0) >= 0) {
time_t bootsec = boottime.tv_sec;
time_t currsec = time(NULL);
os::print_dhm(st, "OS uptime:", (long) difftime(currsec, bootsec));
}
}
julong os::physical_memory() {
return Bsd::physical_memory();
}
@ -1569,6 +1585,8 @@ void os::print_os_info(outputStream* st) {
os::Posix::print_uname_info(st);
os::Bsd::print_uptime_info(st);
os::Posix::print_rlimit_info(st);
os::Posix::print_load_average(st);