Module Name: src
Committed By: pooka
Date: Fri Jan 15 18:38:16 UTC 2010
Modified Files:
src/sys/rump/net/rumptest: rumptest_net.c
Log Message:
print mbuf statistics a few times. incidentally, can be used to
test percpu.
To generate a diff of this commit:
cvs rdiff -u -r1.12 -r1.13 src/sys/rump/net/rumptest/rumptest_net.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/rump/net/rumptest/rumptest_net.c
diff -u src/sys/rump/net/rumptest/rumptest_net.c:1.12 src/sys/rump/net/rumptest/rumptest_net.c:1.13
--- src/sys/rump/net/rumptest/rumptest_net.c:1.12 Tue Oct 20 00:25:26 2009
+++ src/sys/rump/net/rumptest/rumptest_net.c Fri Jan 15 18:38:16 2010
@@ -1,4 +1,4 @@
-/* $NetBSD: rumptest_net.c,v 1.12 2009/10/20 00:25:26 pooka Exp $ */
+/* $NetBSD: rumptest_net.c,v 1.13 2010/01/15 18:38:16 pooka Exp $ */
/*
* Copyright (c) 2008 Antti Kantee. All Rights Reserved.
@@ -28,9 +28,11 @@
* SUCH DAMAGE.
*/
-#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/mbuf.h>
#include <sys/time.h>
#include <sys/sockio.h>
+#include <sys/sysctl.h>
#include <arpa/inet.h>
#include <net/if.h>
@@ -44,6 +46,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <unistd.h>
#define DEST_ADDR "204.152.190.12" /* www.NetBSD.org */
#define DEST_PORT 80 /* take a wild guess */
@@ -163,6 +166,30 @@
}
#endif /* FULL_NETWORK_STACK */
+static void
+printstats(void)
+{
+ struct mbstat mbstat;
+ int ctl[] = { CTL_KERN, KERN_MBUF, MBUF_STATS };
+ int totalmbuf = 0;
+ size_t mbslen = sizeof(struct mbstat);
+ unsigned i;
+
+ if (rump_sys___sysctl(ctl, __arraycount(ctl), &mbstat, &mbslen,
+ NULL, 0) == -1)
+ return;
+
+ printf(" mbuf count:\n");
+ for (i = 0; i < __arraycount(mbstat.m_mtypes); i++) {
+ if (mbstat.m_mtypes[i] == 0)
+ continue;
+ printf("%s (%d) mbuf count %d\n",
+ i == MT_DATA ? "data" : "unknown", i, mbstat.m_mtypes[i]);
+ totalmbuf += mbstat.m_mtypes[i];
+ }
+ printf("total mbufs: %d\n", totalmbuf);
+}
+
int
main(int argc, char *argv[])
{
@@ -199,6 +226,8 @@
err(1, "connect failed");
}
+ printstats();
+
printf("connected\n");
strcpy(buf, "GET / HTTP/1.0\n\n");
@@ -206,6 +235,11 @@
if (n != (ssize_t)strlen(buf))
err(1, "wrote only %zd vs. %zu\n",
n, strlen(buf));
+
+ /* wait for mbufs to accumulate. hacky, but serves purpose. */
+ sleep(1);
+ printstats();
+ sleep(1);
memset(buf, 0, sizeof(buf));
for (off = 0; off < sizeof(buf) && n > 0;) {
