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8180482: Reformat -XX:+PrintSafepointStatistics table

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Reviewed-by: dholmes
This commit is contained in:
Aleksey Shipilev 2017-05-17 23:18:19 +02:00
parent 3725b7c8ff
commit ae8a3dd115
1 changed files with 19 additions and 19 deletions
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38
hotspot/src/share/vm/runtime/safepoint.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -1108,9 +1108,12 @@ static bool init_done = false;
// Helper method to print the header.
static void print_header() {
tty->print(" vmop "
"[threads: total initially_running wait_to_block] ");
tty->print("[time: spin block sync cleanup vmop] ");
// The number of spaces is significant here, and should match the format
// specifiers in print_statistics().
tty->print(" vmop "
"[ threads: total initially_running wait_to_block ]"
"[ time: spin block sync cleanup vmop ] ");
// no page armed status printed out if it is always armed.
if (need_to_track_page_armed_status) {
@ -1249,27 +1252,24 @@ void SafepointSynchronize::end_statistics(jlong vmop_end_time) {
}
void SafepointSynchronize::print_statistics() {
SafepointStats* sstats = _safepoint_stats;
for (int index = 0; index <= _cur_stat_index; index++) {
if (index % 30 == 0) {
print_header();
}
sstats = &_safepoint_stats[index];
tty->print("%.3f: ", sstats->_time_stamp);
tty->print("%-26s ["
INT32_FORMAT_W(8) INT32_FORMAT_W(11) INT32_FORMAT_W(15)
" ] ",
sstats->_vmop_type == -1 ? "no vm operation" :
VM_Operation::name(sstats->_vmop_type),
SafepointStats* sstats = &_safepoint_stats[index];
tty->print("%8.3f: ", sstats->_time_stamp);
tty->print("%-30s [ "
INT32_FORMAT_W(8) " " INT32_FORMAT_W(17) " " INT32_FORMAT_W(13) " "
"]",
(sstats->_vmop_type == -1 ? "no vm operation" : VM_Operation::name(sstats->_vmop_type)),
sstats->_nof_total_threads,
sstats->_nof_initial_running_threads,
sstats->_nof_threads_wait_to_block);
// "/ MICROUNITS " is to convert the unit from nanos to millis.
tty->print(" ["
INT64_FORMAT_W(6) INT64_FORMAT_W(6)
INT64_FORMAT_W(6) INT64_FORMAT_W(6)
INT64_FORMAT_W(6) " ] ",
tty->print("[ "
INT64_FORMAT_W(7) " " INT64_FORMAT_W(7) " "
INT64_FORMAT_W(7) " " INT64_FORMAT_W(7) " "
INT64_FORMAT_W(7) " ] ",
sstats->_time_to_spin / MICROUNITS,
sstats->_time_to_wait_to_block / MICROUNITS,
sstats->_time_to_sync / MICROUNITS,
@ -1277,9 +1277,9 @@ void SafepointSynchronize::print_statistics() {
sstats->_time_to_exec_vmop / MICROUNITS);
if (need_to_track_page_armed_status) {
tty->print(INT32_FORMAT " ", sstats->_page_armed);
tty->print(INT32_FORMAT_W(10) " ", sstats->_page_armed);
}
tty->print_cr(INT32_FORMAT " ", sstats->_nof_threads_hit_page_trap);
tty->print_cr(INT32_FORMAT_W(15) " ", sstats->_nof_threads_hit_page_trap);
}
}