2011-04-27 11:58:34 +00:00
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/*
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2013-08-18 14:16:15 +00:00
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* Copyright 2011-2013 Blender Foundation
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2011-04-27 11:58:34 +00:00
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*
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2013-08-18 14:16:15 +00:00
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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2011-04-27 11:58:34 +00:00
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*
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2013-08-18 14:16:15 +00:00
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* http://www.apache.org/licenses/LICENSE-2.0
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2011-04-27 11:58:34 +00:00
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*
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2013-08-18 14:16:15 +00:00
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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2014-12-25 01:50:24 +00:00
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* limitations under the License.
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2011-04-27 11:58:34 +00:00
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*/
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#ifndef __UTIL_TIME_H__
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#define __UTIL_TIME_H__
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CCL_NAMESPACE_BEGIN
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/* Give current time in seconds in double precision, with good accuracy. */
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double time_dt();
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/* Sleep for the specified number of seconds */
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void time_sleep(double t);
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2015-12-30 14:35:21 +00:00
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class scoped_timer {
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public:
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Cycles: Refactor Progress system to provide better estimates
The Progress system in Cycles had two limitations so far:
- It just counted tiles, but ignored their size. For example, when rendering a 600x500 image with 512x512 tiles, the right 88x500 tile would count for 50% of the progress, although it only covers 15% of the image.
- Scene update time was incorrectly counted as rendering time - therefore, the remaining time started very long and gradually decreased.
This patch fixes both problems:
First of all, the Progress now has a function to ignore time spans, and that is used to ignore scene update time.
The larger change is the tile size: Instead of counting samples per tile, so that the final value is num_samples*num_tiles, the code now counts every sample for every pixel, so that the final value is num_samples*num_pixels.
Along with that, some unused variables were removed from the Progress and Session classes.
Reviewers: brecht, sergey, #cycles
Subscribers: brecht, candreacchio, sergey
Differential Revision: https://developer.blender.org/D2214
2016-11-26 03:22:34 +00:00
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explicit scoped_timer(double *value = NULL) : value_(value)
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2015-12-30 14:35:21 +00:00
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{
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2016-01-09 23:45:29 +00:00
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time_start_ = time_dt();
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2015-12-30 14:35:21 +00:00
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}
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~scoped_timer()
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{
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if(value_ != NULL) {
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2017-08-25 12:15:51 +00:00
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*value_ = get_time();
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2015-12-30 14:35:21 +00:00
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}
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}
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Cycles: Refactor Progress system to provide better estimates
The Progress system in Cycles had two limitations so far:
- It just counted tiles, but ignored their size. For example, when rendering a 600x500 image with 512x512 tiles, the right 88x500 tile would count for 50% of the progress, although it only covers 15% of the image.
- Scene update time was incorrectly counted as rendering time - therefore, the remaining time started very long and gradually decreased.
This patch fixes both problems:
First of all, the Progress now has a function to ignore time spans, and that is used to ignore scene update time.
The larger change is the tile size: Instead of counting samples per tile, so that the final value is num_samples*num_tiles, the code now counts every sample for every pixel, so that the final value is num_samples*num_pixels.
Along with that, some unused variables were removed from the Progress and Session classes.
Reviewers: brecht, sergey, #cycles
Subscribers: brecht, candreacchio, sergey
Differential Revision: https://developer.blender.org/D2214
2016-11-26 03:22:34 +00:00
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double get_start() const
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{
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return time_start_;
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}
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2017-08-25 12:15:51 +00:00
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double get_time() const
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{
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return time_dt() - time_start_;
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}
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2015-12-30 14:35:21 +00:00
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protected:
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double *value_;
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double time_start_;
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};
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2011-04-27 11:58:34 +00:00
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CCL_NAMESPACE_END
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#endif
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