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Add an option to run mostly synchronously for profiling

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This commit is contained in:
Erica Fischer
2022-09-13 13:00:14 -07:00
parent 8e46650da7
commit b3fea7c172
7 changed files with 31 additions and 10 deletions
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main.cpp
+17 -3
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@@ -468,7 +468,7 @@ void do_read_parallel(char *map, long long len, long long initial_offset, const
}
for (size_t i = 0; i < CPUS; i++) {
if (pthread_create(&pthreads[i], NULL, run_parse_json, &pja[i]) != 0) {
if (pthread_create_wrap(&pthreads[i], NULL, run_parse_json, &pja[i]) != 0) {
perror("pthread_create");
exit(EXIT_FAILURE);
}
@@ -682,7 +682,7 @@ void start_parsing(int fd, STREAM *fp, long long offset, long long len, std::ato
rpa->want_dist = want_dist;
rpa->filters = filters;
if (pthread_create(parallel_parser, NULL, run_read_parallel, rpa) != 0) {
if (pthread_create_wrap(parallel_parser, NULL, run_read_parallel, rpa) != 0) {
perror("pthread_create");
exit(EXIT_FAILURE);
}
@@ -877,7 +877,7 @@ void radix1(int *geomfds_in, int *indexfds_in, int inputs, int prefix, int split
}
for (size_t a = 0; a < CPUS; a++) {
if (pthread_create(&pthreads[a], NULL, run_sort, &args[a]) != 0) {
if (pthread_create_wrap(&pthreads[a], NULL, run_sort, &args[a]) != 0) {
perror("pthread_create");
exit(EXIT_FAILURE);
}
@@ -2789,6 +2789,7 @@ int main(int argc, char **argv) {
{"check-polygons", no_argument, &additional[A_DEBUG_POLYGON], 1},
{"no-polygon-splitting", no_argument, &prevent[P_POLYGON_SPLIT], 1},
{"prefer-radix-sort", no_argument, &additional[A_PREFER_RADIX_SORT], 1},
{"single-threaded", no_argument, &prevent[P_THREADS], 1},
{"help", no_argument, 0, 'H'},
{0, 0, 0, 0},
@@ -3451,3 +3452,16 @@ bool progress_time() {
return false;
}
}
static void *donothing(void *arg) {
return arg;
}
int pthread_create_wrap(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg) {
if (prevent[P_THREADS]) {
void *ret = start_routine(arg);
return pthread_create(thread, attr, donothing, ret);
} else {
return pthread_create(thread, attr, start_routine, arg);
}
}