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author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:29:04 -0800 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:29:04 -0800 |
commit | e54eebbf1a908d65ee8cf80bab62821c05666d70 (patch) | |
tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /toolbox/schedtop.c | |
parent | a1e1c1b106423de09bc918502e7a51d4ffe5a4ae (diff) | |
download | system_core-e54eebbf1a908d65ee8cf80bab62821c05666d70.zip system_core-e54eebbf1a908d65ee8cf80bab62821c05666d70.tar.gz system_core-e54eebbf1a908d65ee8cf80bab62821c05666d70.tar.bz2 |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'toolbox/schedtop.c')
-rw-r--r-- | toolbox/schedtop.c | 335 |
1 files changed, 0 insertions, 335 deletions
diff --git a/toolbox/schedtop.c b/toolbox/schedtop.c deleted file mode 100644 index c0e0141..0000000 --- a/toolbox/schedtop.c +++ /dev/null @@ -1,335 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> -#include <ctype.h> -#include <fcntl.h> - -#include <string.h> - -#include <sys/stat.h> -#include <sys/types.h> -#include <dirent.h> -#include <signal.h> - -#include <pwd.h> - -struct thread_info { - int pid; - int tid; - char name[64]; - uint64_t exec_time; - uint64_t delay_time; - uint32_t run_count; -}; - -struct thread_table { - size_t allocated; - size_t active; - struct thread_info *data; -}; - -enum { - FLAG_BATCH = 1U << 0, - FLAG_HIDE_IDLE = 1U << 1, - FLAG_SHOW_THREADS = 1U << 2, - FLAG_USE_ALTERNATE_SCREEN = 1U << 3, -}; - -static int time_dp = 9; -static int time_div = 1; -#define NS_TO_S_D(ns) \ - (uint32_t)((ns) / 1000000000), time_dp, ((uint32_t)((ns) % 1000000000) / time_div) - -struct thread_table processes; -struct thread_table last_processes; -struct thread_table threads; -struct thread_table last_threads; - -static void grow_table(struct thread_table *table) -{ - size_t size = table->allocated; - struct thread_info *new_table; - if (size < 128) - size = 128; - else - size *= 2; - - new_table = realloc(table->data, size * sizeof(*table->data)); - if (new_table == NULL) { - fprintf(stderr, "out of memory\n"); - exit(1); - } - table->data = new_table; - table->allocated = size; -} - -static struct thread_info *get_item(struct thread_table *table) -{ - if (table->active >= table->allocated) - grow_table(table); - return table->data + table->active; -} - -static void commit_item(struct thread_table *table) -{ - table->active++; -} - -static int read_line(char *line, size_t line_size) -{ - int fd; - int len; - fd = open(line, O_RDONLY); - if(fd == 0) - return -1; - len = read(fd, line, line_size - 1); - close(fd); - if (len <= 0) - return -1; - line[len] = '\0'; - return 0; -} - -static void add_thread(int pid, int tid, struct thread_info *proc_info) -{ - char line[1024]; - char *name, *name_end; - size_t name_len; - struct thread_info *info; - if(tid == 0) - info = get_item(&processes); - else - info = get_item(&threads); - info->pid = pid; - info->tid = tid; - - if(tid) - sprintf(line, "/proc/%d/task/%d/schedstat", pid, tid); - else - sprintf(line, "/proc/%d/schedstat", pid); - if (read_line(line, sizeof(line))) - return; - if(sscanf(line, "%llu %llu %u", &info->exec_time, &info->delay_time, &info->run_count) != 3) - return; - if (proc_info) { - proc_info->exec_time += info->exec_time; - proc_info->delay_time += info->delay_time; - proc_info->run_count += info->run_count; - } - - name = NULL; - if (!tid) { - sprintf(line, "/proc/%d/cmdline", pid); - if (read_line(line, sizeof(line)) == 0 && line[0]) { - name = line; - name_len = strlen(name); - } - } - if (!name) { - if (tid) - sprintf(line, "/proc/%d/task/%d/stat", pid, tid); - else - sprintf(line, "/proc/%d/stat", pid); - if (read_line(line, sizeof(line))) - return; - name = strchr(line, '('); - if (name == NULL) - return; - name_end = strchr(name, ')'); - if (name_end == NULL) - return; - name++; - name_len = name_end - name; - } - if (name_len >= sizeof(info->name)) - name_len = sizeof(info->name) - 1; - memcpy(info->name, name, name_len); - info->name[name_len] = '\0'; - if(tid == 0) - commit_item(&processes); - else - commit_item(&threads); -} - -static void add_threads(int pid, struct thread_info *proc_info) -{ - char path[1024]; - DIR *d; - struct dirent *de; - sprintf(path, "/proc/%d/task", pid); - d = opendir(path); - if(d == 0) return; - while((de = readdir(d)) != 0){ - if(isdigit(de->d_name[0])){ - int tid = atoi(de->d_name); - add_thread(pid, tid, proc_info); - } - } - closedir(d); -} - -static void print_threads(int pid, uint32_t flags) -{ - size_t i, j; - for (i = 0; i < last_threads.active; i++) { - int epid = last_threads.data[i].pid; - int tid = last_threads.data[i].tid; - if (epid != pid) - continue; - for (j = 0; j < threads.active; j++) - if (tid == threads.data[j].tid) - break; - if (j == threads.active) - printf(" %5u died\n", tid); - else if (!(flags & FLAG_HIDE_IDLE) || threads.data[j].run_count - last_threads.data[i].run_count) - printf(" %5u %2u.%0*u %2u.%0*u %5u %5u.%0*u %5u.%0*u %7u %s\n", tid, - NS_TO_S_D(threads.data[j].exec_time - last_threads.data[i].exec_time), - NS_TO_S_D(threads.data[j].delay_time - last_threads.data[i].delay_time), - threads.data[j].run_count - last_threads.data[i].run_count, - NS_TO_S_D(threads.data[j].exec_time), NS_TO_S_D(threads.data[j].delay_time), - threads.data[j].run_count, threads.data[j].name); - } -} - -static void update_table(DIR *d, uint32_t flags) -{ - size_t i, j; - struct dirent *de; - - rewinddir(d); - while((de = readdir(d)) != 0){ - if(isdigit(de->d_name[0])){ - int pid = atoi(de->d_name); - struct thread_info *proc_info; - add_thread(pid, 0, NULL); - proc_info = &processes.data[processes.active - 1]; - proc_info->exec_time = 0; - proc_info->delay_time = 0; - proc_info->run_count = 0; - add_threads(pid, proc_info); - } - } - if (!(flags & FLAG_BATCH)) - printf("\e[H\e[0J"); - printf("Processes: %d, Threads %d\n", processes.active, threads.active); - switch (time_dp) { - case 3: - printf(" TID --- SINCE LAST ---- ---------- TOTAL ----------\n"); - printf(" PID EXEC_T DELAY SCHED EXEC_TIME DELAY_TIM SCHED NAME\n"); - break; - case 6: - printf(" TID ------ SINCE LAST ------- ------------ TOTAL -----------\n"); - printf(" PID EXEC_TIME DELAY_TIM SCHED EXEC_TIME DELAY_TIME SCHED NAME\n"); - break; - default: - printf(" TID -------- SINCE LAST -------- ------------- TOTAL -------------\n"); - printf(" PID EXEC_TIME DELAY_TIME SCHED EXEC_TIME DELAY_TIME SCHED NAME\n"); - break; - } - for (i = 0; i < last_processes.active; i++) { - int pid = last_processes.data[i].pid; - int tid = last_processes.data[i].tid; - for (j = 0; j < processes.active; j++) - if (pid == processes.data[j].pid) - break; - if (j == processes.active) - printf("%5u died\n", pid); - else if (!(flags & FLAG_HIDE_IDLE) || processes.data[j].run_count - last_processes.data[i].run_count) { - printf("%5u %2u.%0*u %2u.%0*u %5u %5u.%0*u %5u.%0*u %7u %s\n", pid, - NS_TO_S_D(processes.data[j].exec_time - last_processes.data[i].exec_time), - NS_TO_S_D(processes.data[j].delay_time - last_processes.data[i].delay_time), - processes.data[j].run_count - last_processes.data[i].run_count, - NS_TO_S_D(processes.data[j].exec_time), NS_TO_S_D(processes.data[j].delay_time), - processes.data[j].run_count, processes.data[j].name); - if (flags & FLAG_SHOW_THREADS) - print_threads(pid, flags); - } - } - - { - struct thread_table tmp; - tmp = last_processes; - last_processes = processes; - processes = tmp; - processes.active = 0; - tmp = last_threads; - last_threads = threads; - threads = tmp; - threads.active = 0; - } -} - -void -sig_abort(int signum) -{ - printf("\e[?47l"); - exit(0); -} - - -int schedtop_main(int argc, char **argv) -{ - int c; - DIR *d; - struct dirent *de; - char *namefilter = 0; - int pidfilter = 0; - uint32_t flags = 0; - int delay = 3000000; - float delay_f; - - while(1) { - c = getopt(argc, argv, "d:ibtamun"); - if (c == EOF) - break; - switch (c) { - case 'd': - delay_f = atof(optarg); - delay = delay_f * 1000000; - break; - case 'b': - flags |= FLAG_BATCH; - break; - case 'i': - flags |= FLAG_HIDE_IDLE; - break; - case 't': - flags |= FLAG_SHOW_THREADS; - break; - case 'a': - flags |= FLAG_USE_ALTERNATE_SCREEN; - break; - case 'm': - time_dp = 3; - time_div = 1000000; - break; - case 'u': - time_dp = 6; - time_div = 1000; - break; - case 'n': - time_dp = 9; - time_div = 1; - break; - } - } - - d = opendir("/proc"); - if(d == 0) return -1; - - if (!(flags & FLAG_BATCH)) { - if(flags & FLAG_USE_ALTERNATE_SCREEN) { - signal(SIGINT, sig_abort); - signal(SIGPIPE, sig_abort); - signal(SIGTERM, sig_abort); - printf("\e7\e[?47h"); - } - printf("\e[2J"); - } - while (1) { - update_table(d, flags); - usleep(delay); - } - closedir(d); - return 0; -} - |