add directory study

study/linux-travel/MINIX-1.5/1.5/Source/amoeba/examples/client2.c

@@ -0,0 +1,76 @@
+/* This file is the client of a test program for measuring RPC speed. */
+
+#include <amoeba.h>
+#include <minix/callnr.h>
+#include "header.h"
+
+#define TRIALS 1000
+
+char buffer[MAX_TRANS];
+int bytes[] = {1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 
+		8192, 16384, 30000, 0};
+
+header hdr1, hdr2;
+
+main(argc, argv)
+int argc;
+char *argv[];
+{
+  int i, cnt;
+
+  if (argc != 2) {
+	printf("Usage: client2 portname\n");
+	exit(1);
+  }
+
+  /* Copy the filename into the start of the buffer. */
+  strncpy(&hdr1.h_port, argv[1], PORTSIZE);
+  hdr1.h_command = READ;
+
+  printf("Buf size        Delay       Throughput      (Each test repeated %d times)\n", TRIALS);
+  printf("            (msec/trans)    (bytes/sec)\n");
+  printf("--------    ------------    -----------\n");
+
+  i = 0;
+  while (bytes[i] != 0) {
+	run_test(bytes[i], TRIALS);
+	i++;
+  }
+  hdr1.h_command = QUIT;
+  trans(&hdr1, buffer, 0, &hdr2, buffer, 0);
+  exit(0);
+}
+
+
+run_test(count, trials)
+int count, trials;
+{
+/* Run a performance test. */
+
+  int i, n;
+  long start, finish, traffic, sec, msec, delay, throughput;
+  
+  time(&start);				/* record starting time */
+  for (i = 0; i < trials; i++) {
+	hdr1.h_command = READ;
+	hdr1.h_size = (unshort) count;
+	n = trans(&hdr1, buffer, 0, &hdr2, buffer, MAX_TRANS);
+  	if (n < 0) {
+		printf("Transaction failed. Error = %d.   ", n);
+		printf("Hit F1 to see if AMTASK running.\n");
+		exit(1);
+	}
+  }
+  time(&finish);
+  sec = finish - start;			/* time for this trial in seconds */
+  msec = 1000L * sec;
+  traffic = (long) trials * (long) count;
+  delay = msec/trials;			/* msec per transaction */
+  if (sec != 0L)
+	throughput = traffic/sec;
+  else
+	throughput = 0L;
+  printf("  %5d         %4D          %7D\n", count, delay, throughput);
+}
+
+