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Diffstat (limited to '3rdparty/openpgm-svn-r1085/pgm/include/impl/histogram.h')
| -rw-r--r-- | 3rdparty/openpgm-svn-r1085/pgm/include/impl/histogram.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/3rdparty/openpgm-svn-r1085/pgm/include/impl/histogram.h b/3rdparty/openpgm-svn-r1085/pgm/include/impl/histogram.h new file mode 100644 index 0000000..92ddeb9 --- /dev/null +++ b/3rdparty/openpgm-svn-r1085/pgm/include/impl/histogram.h @@ -0,0 +1,129 @@ +/* vim:ts=8:sts=8:sw=4:noai:noexpandtab + * + * histograms. + * + * Copyright (c) 2009 Miru Limited. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#if !defined (__PGM_IMPL_FRAMEWORK_H_INSIDE__) && !defined (PGM_COMPILATION) +# error "Only <framework.h> can be included directly." +#endif + +#ifndef __PGM_IMPL_HISTOGRAM_H__ +#define __PGM_IMPL_HISTOGRAM_H__ + +#include <pgm/types.h> +#include <pgm/time.h> +#include <impl/slist.h> +#include <impl/string.h> + +PGM_BEGIN_DECLS + +typedef int pgm_sample_t; +typedef int pgm_count_t; + +struct pgm_sample_set_t { + pgm_count_t* counts; + unsigned counts_len; + int64_t sum; + int64_t square_sum; +}; + +typedef struct pgm_sample_set_t pgm_sample_set_t; + +struct pgm_histogram_t { + const char* restrict histogram_name; + unsigned bucket_count; + pgm_sample_t declared_min; + pgm_sample_t declared_max; + pgm_sample_t* restrict ranges; + pgm_sample_set_t sample; + bool is_registered; + pgm_slist_t histograms_link; +}; + +typedef struct pgm_histogram_t pgm_histogram_t; + +#define PGM_HISTOGRAM_DEFINE(name, minimum, maximum, count) \ + static pgm_count_t counts[ (count) ]; \ + static pgm_sample_t ranges[ (count) + 1 ]; \ + static pgm_histogram_t counter = { \ + .histogram_name = (name), \ + .bucket_count = (count), \ + .declared_min = (minimum), \ + .declared_max = (maximum), \ + .ranges = ranges, \ + .sample = { \ + .counts = counts, \ + .counts_len = (count), \ + .sum = 0, \ + .square_sum = 0 \ + }, \ + .is_registered = FALSE \ + } + +#ifdef CONFIG_HISTOGRAMS + +# define PGM_HISTOGRAM_TIMES(name, sample) do { \ + PGM_HISTOGRAM_DEFINE(name, pgm_msecs(1), pgm_secs(10), 50); \ + if (!counter.is_registered) { \ + memset (counts, 0, sizeof(counts)); \ + memset (ranges, 0, sizeof(ranges)); \ + pgm_histogram_init (&counter); \ + } \ + pgm_histogram_add_time (&counter, sample); \ + } while (0) + +# define PGM_HISTOGRAM_COUNTS(name, sample) do { \ + PGM_HISTOGRAM_DEFINE(name, 1, 1000000, 50); \ + if (!counter.is_registered) { \ + memset (counts, 0, sizeof(counts)); \ + memset (ranges, 0, sizeof(ranges)); \ + pgm_histogram_init (&counter); \ + } \ + pgm_histogram_add (&counter, (sample)); \ + } while (0) + +#else /* !CONFIG_HISTOGRAMS */ + +# define PGM_HISTOGRAM_TIMES(name, sample) +# define PGM_HISTOGRAM_COUNTS(name, sample) + +#endif /* !CONFIG_HISTOGRAMS */ + + +extern pgm_slist_t* pgm_histograms; + +void pgm_histogram_init (pgm_histogram_t*); +void pgm_histogram_add (pgm_histogram_t*, int); +void pgm_histogram_write_html_graph_all (pgm_string_t*); + +static inline +void +pgm_histogram_add_time ( + pgm_histogram_t*const histogram, + pgm_time_t sample_time + ) +{ + pgm_histogram_add (histogram, (int)pgm_to_msecs (sample_time)); +} + +PGM_END_DECLS + +#endif /* __PGM_IMPL_HISTOGRAM_H__ */ + +/* eof */ |