ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 1 | // Copyright 2007-2008 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #include "v8.h" |
| 29 | |
| 30 | #include "counters.h" |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 31 | #include "isolate.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 32 | #include "platform.h" |
| 33 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 34 | namespace v8 { |
| 35 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 36 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 37 | StatsTable::StatsTable() |
| 38 | : lookup_function_(NULL), |
| 39 | create_histogram_function_(NULL), |
| 40 | add_histogram_sample_function_(NULL) {} |
| 41 | |
| 42 | |
| 43 | int* StatsCounter::FindLocationInStatsTable() const { |
| 44 | return Isolate::Current()->stats_table()->FindLocation(name_); |
| 45 | } |
| 46 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 47 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 48 | // Start the timer. |
| 49 | void StatsCounterTimer::Start() { |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 50 | if (!counter_.Enabled()) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 51 | return; |
| 52 | stop_time_ = 0; |
| 53 | start_time_ = OS::Ticks(); |
| 54 | } |
| 55 | |
| 56 | // Stop the timer and record the results. |
| 57 | void StatsCounterTimer::Stop() { |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 58 | if (!counter_.Enabled()) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 59 | return; |
| 60 | stop_time_ = OS::Ticks(); |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 61 | |
| 62 | // Compute the delta between start and stop, in milliseconds. |
| 63 | int milliseconds = static_cast<int>(stop_time_ - start_time_) / 1000; |
| 64 | counter_.Increment(milliseconds); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 65 | } |
| 66 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 67 | // Start the timer. |
| 68 | void HistogramTimer::Start() { |
| 69 | if (GetHistogram() != NULL) { |
| 70 | stop_time_ = 0; |
| 71 | start_time_ = OS::Ticks(); |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | // Stop the timer and record the results. |
| 76 | void HistogramTimer::Stop() { |
| 77 | if (histogram_ != NULL) { |
| 78 | stop_time_ = OS::Ticks(); |
| 79 | |
| 80 | // Compute the delta between start and stop, in milliseconds. |
| 81 | int milliseconds = static_cast<int>(stop_time_ - start_time_) / 1000; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 82 | Isolate::Current()->stats_table()-> |
| 83 | AddHistogramSample(histogram_, milliseconds); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 84 | } |
| 85 | } |
| 86 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 87 | |
| 88 | void* HistogramTimer::CreateHistogram() const { |
| 89 | return Isolate::Current()->stats_table()-> |
| 90 | CreateHistogram(name_, 0, 10000, 50); |
| 91 | } |
| 92 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 93 | } } // namespace v8::internal |