108 lines
2.3 KiB
C
108 lines
2.3 KiB
C
#include<unistd.h>
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#include "ff_ipc.h"
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void
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usage(void)
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{
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printf("Usage:\n");
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printf(" top [-p <f-stack proc_id>] [-d <secs>] [-n num]\n");
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}
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int cpu_status(struct ff_top_args *top)
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{
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int ret;
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struct ff_msg *msg, *retmsg = NULL;
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msg = ff_ipc_msg_alloc();
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if (msg == NULL) {
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errno = ENOMEM;
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return -1;
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}
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msg->msg_type = FF_TOP;
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ret = ff_ipc_send(msg);
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if (ret < 0) {
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errno = EPIPE;
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ff_ipc_msg_free(msg);
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return -1;
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}
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do {
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if (retmsg != NULL) {
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ff_ipc_msg_free(retmsg);
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}
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ret = ff_ipc_recv(&retmsg);
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if (ret < 0) {
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errno = EPIPE;
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ff_ipc_msg_free(msg);
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return -1;
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}
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} while (msg != retmsg);
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*top = retmsg->top;
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ff_ipc_msg_free(msg);
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return 0;
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}
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int main(int argc, char **argv)
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{
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int ch, delay = 1, n = 0;
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unsigned int i;
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struct ff_top_args top, otop;
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ff_ipc_init();
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#define TOP_DIFF(member) (top.member - otop.member)
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while ((ch = getopt(argc, argv, "hp:d:n:")) != -1) {
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switch(ch) {
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case 'p':
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ff_set_proc_id(atoi(optarg));
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break;
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case 'd':
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delay = atoi(optarg) ?: 1;
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break;
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case 'n':
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n = atoi(optarg);
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break;
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case 'h':
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default:
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usage();
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return -1;
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}
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}
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for (i = 0; ; i++) {
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if (cpu_status(&top)) {
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printf("fstack ipc message error !\n");
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return -1;
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}
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if (i % 40 == 0) {
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printf("|---------|---------|---------|---------------|\n");
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printf("|%9s|%9s|%9s|%15s|\n", "idle", "sys", "usr", "loop");
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printf("|---------|---------|---------|---------------|\n");
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}
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if (i) {
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float psys = TOP_DIFF(sys_tsc) / (TOP_DIFF(work_tsc) / 100.0);
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float pusr = TOP_DIFF(usr_tsc) / (TOP_DIFF(work_tsc) / 100.0);
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float pidle = TOP_DIFF(idle_tsc) / (TOP_DIFF(work_tsc) / 100.0);
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printf("|%8.2f%%|%8.2f%%|%8.2f%%|%15lu|\n", pidle, psys, pusr, TOP_DIFF(loops));
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}
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if (n && i >= n) {
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break;
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}
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otop = top;
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sleep(delay);
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}
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return 0;
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}
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