Date: Sun, 29 Jan 2006 20:20:07 GMT From: hotlips Internet admin <hostmaster@GTS.NET> To: freebsd-amd64@FreeBSD.org Subject: Re: amd64/92412: rcp.rstatd reports bogus packets/per/second info Message-ID: <200601292020.k0TKK7Jh035657@freefall.freebsd.org>
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The following reply was made to PR amd64/92412; it has been noted by GNATS.
From: hotlips Internet admin <hostmaster@GTS.NET>
To: sean@mcneil.com (Sean McNeil)
Cc: bug-followup@FreeBSD.org, freebsd-amd64@FreeBSD.org
Subject: Re: amd64/92412: rcp.rstatd reports bogus packets/per/second info
Date: Sun, 29 Jan 2006 15:19:04 -0500 (EST)
Thus saith Sean McNeil:
| On Sun, 2006-01-29 at 07:30 +0000, hotlips Internet admin wrote:
| > The following reply was made to PR amd64/92412; it has been noted by GNATS.
| > From: hotlips Internet admin <hostmaster@GTS.NET>
| > Thus saith Kris Kennaway:
| > | On Fri, Jan 27, 2006 at 11:59:15AM -0500, hotlips Internet admin wrote:
| > |
| > | > | > >Description:
| > | > | > packets/second value reported by rpc.rstatd to remote monitor hovers around
| > | > | > 8000 or so with odd downward spikes approx every 90 seconds (it's not at
| > | > | all related to actual interface traffic)
| > | > | >
| > | > | > >How-To-Repeat:
| > | > | > keep displaying rpc.rstatd data from 6.0 system
| > | > |
| > | > | How are you using rpc.rstatd and rup? I don't see a way to make rup
| > | > | display "packets/second", it only gives uptime and load average:
| > | > |
| > | > | # rup
| > | > | fbsd-amd64.isc. 10:02am up 4 days, 14:00, load average: 2.00 2.00 2.00
| > | >
| > | > Solaris perfmeter, actually.
| > |
| > | Do you know how I can query this on FreeBSD?
| >
| > oop, wrong (older) diff - use this one below...
|
| The diff would be more readable if you only include useful changes and
| eliminate difference caused solely from white space. For instance, with
| diff -ub.
sorry, I've been trained to use diff -c; "-ub" version
included velow.
This fix should work for all 6.x FreeBSD (and probably 5.x too) -
4.x & 3.x seem to have issues with opackets systcl mib (always
returns 0), so I made a version for them which uses the kmem
interface as well as the other fixes shown below....
BTW, the sysutils/xsysstats package works fine for X users...
--
Bruce Becker +1 416 410 0879
GTS Network Administration Toronto, Ont.
Email: hostmaster@gts.net
--------- 8< --------- 8< --------- 8< --------- 8< --------- 8< ---------
--- rstat_proc.c.orig Sun Jun 1 22:34:36 2003
+++ rstat_proc.c Sun Jan 29 02:17:10 2006
@@ -138,6 +138,7 @@
if (! stat_is_init)
stat_init();
sincelastreq = 0;
+ stats_all.s2.if_opackets = stats_all.s3.if_opackets;
return(&stats_all.s2);
}
@@ -147,6 +148,7 @@
if (! stat_is_init)
stat_init();
sincelastreq = 0;
+ stats_all.s1.if_opackets = stats_all.s3.if_opackets;
return(&stats_all.s1);
}
@@ -219,13 +221,13 @@
exit(1);
}
for(i = 0; i < RSTAT_CPUSTATES ; i++)
- stats_all.s1.cp_time[i] = bsd_cp_time[cp_time_xlat[i]];
+ stats_all.s3.cp_time[i] = bsd_cp_time[cp_time_xlat[i]];
(void)getloadavg(avrun, sizeof(avrun) / sizeof(avrun[0]));
- stats_all.s2.avenrun[0] = avrun[0] * FSCALE;
- stats_all.s2.avenrun[1] = avrun[1] * FSCALE;
- stats_all.s2.avenrun[2] = avrun[2] * FSCALE;
+ stats_all.s3.avenrun[0] = avrun[0] * FSCALE;
+ stats_all.s3.avenrun[1] = avrun[1] * FSCALE;
+ stats_all.s3.avenrun[2] = avrun[2] * FSCALE;
mib[0] = CTL_KERN;
mib[1] = KERN_BOOTTIME;
@@ -234,14 +236,13 @@
syslog(LOG_ERR, "sysctl(kern.boottime): %m");
exit(1);
}
-
- stats_all.s2.boottime.tv_sec = btm.tv_sec;
- stats_all.s2.boottime.tv_usec = btm.tv_usec;
+ stats_all.s3.boottime.tv_sec = btm.tv_sec;
+ stats_all.s3.boottime.tv_usec = btm.tv_usec;
#ifdef DEBUG
- fprintf(stderr, "%d %d %d %d\n", stats_all.s1.cp_time[0],
- stats_all.s1.cp_time[1], stats_all.s1.cp_time[2], stats_all.s1.cp_time[3]);
+ fprintf(stderr, "%d %d %d %d\n", stats_all.s3.cp_time[0],
+ stats_all.s3.cp_time[1], stats_all.s3.cp_time[2], stats_all.s3.cp_time[3]);
#endif
/* XXX - should use sysctl */
@@ -249,18 +250,18 @@
syslog(LOG_ERR, "rstat: can't read cnt from kmem");
exit(1);
}
- stats_all.s1.v_pgpgin = cnt.v_vnodepgsin;
- stats_all.s1.v_pgpgout = cnt.v_vnodepgsout;
- stats_all.s1.v_pswpin = cnt.v_swappgsin;
- stats_all.s1.v_pswpout = cnt.v_swappgsout;
- stats_all.s1.v_intr = cnt.v_intr;
+ stats_all.s3.v_pgpgin = cnt.v_vnodepgsin;
+ stats_all.s3.v_pgpgout = cnt.v_vnodepgsout;
+ stats_all.s3.v_pswpin = cnt.v_swappgsin;
+ stats_all.s3.v_pswpout = cnt.v_swappgsout;
+ stats_all.s3.v_intr = cnt.v_intr;
gettimeofday(&tm, (struct timezone *) 0);
- stats_all.s1.v_intr -= hz*(tm.tv_sec - btm.tv_sec) +
+ stats_all.s3.v_intr -= hz*(tm.tv_sec - btm.tv_sec) +
hz*(tm.tv_usec - btm.tv_usec)/1000000;
- stats_all.s2.v_swtch = cnt.v_swtch;
+ stats_all.s3.v_swtch = cnt.v_swtch;
/* update disk transfers */
- updatexfers(RSTAT_DK_NDRIVE, stats_all.s1.dk_xfer);
+ updatexfers(RSTAT_DK_NDRIVE, stats_all.s3.dk_xfer);
mib[0] = CTL_NET;
mib[1] = PF_LINK;
@@ -272,12 +273,11 @@
syslog(LOG_ERR, "sysctl(net.link.generic.system.ifcount): %m");
exit(1);
}
-
- stats_all.s1.if_ipackets = 0;
- stats_all.s1.if_opackets = 0;
- stats_all.s1.if_ierrors = 0;
- stats_all.s1.if_oerrors = 0;
- stats_all.s1.if_collisions = 0;
+ stats_all.s3.if_ipackets = 0;
+ stats_all.s3.if_opackets = 0;
+ stats_all.s3.if_ierrors = 0;
+ stats_all.s3.if_oerrors = 0;
+ stats_all.s3.if_collisions = 0;
for (i = 1; i <= ifcount; i++) {
len = sizeof ifmd;
mib[3] = IFMIB_IFDATA;
@@ -287,19 +287,19 @@
if (errno == ENOENT)
continue;
- syslog(LOG_ERR, "sysctl(net.link.ifdata.%d.general)"
- ": %m", i);
+ syslog(LOG_ERR, "sysctl(net.link.ifdata.%d.general): %m", i);
exit(1);
}
-
- stats_all.s1.if_ipackets += ifmd.ifmd_data.ifi_ipackets;
- stats_all.s1.if_opackets += ifmd.ifmd_data.ifi_opackets;
- stats_all.s1.if_ierrors += ifmd.ifmd_data.ifi_ierrors;
- stats_all.s1.if_oerrors += ifmd.ifmd_data.ifi_oerrors;
- stats_all.s1.if_collisions += ifmd.ifmd_data.ifi_collisions;
+ stats_all.s3.if_ipackets += ifmd.ifmd_data.ifi_ipackets;
+ stats_all.s3.if_opackets += ifmd.ifmd_data.ifi_opackets;
+ stats_all.s3.if_ierrors += ifmd.ifmd_data.ifi_ierrors;
+ stats_all.s3.if_oerrors += ifmd.ifmd_data.ifi_oerrors;
+ stats_all.s3.if_collisions += ifmd.ifmd_data.ifi_collisions;
}
- gettimeofday((struct timeval *)&stats_all.s3.curtime,
- (struct timezone *) 0);
+
+ gettimeofday(&tm, (struct timezone *) 0);
+ stats_all.s3.curtime.tv_sec = tm.tv_sec;
+ stats_all.s3.curtime.tv_usec = tm.tv_usec;
alarm(1);
}
@@ -307,12 +307,21 @@
setup()
{
char errbuf[_POSIX2_LINE_MAX];
-
int en;
+ static int is_kd_setup = 0;
- if ((kd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, errbuf)) == NULL) {
- syslog(LOG_ERR, "rpc.rstatd, %s", errbuf);
- exit(1);
+ /* setup() is called after each dormant->active
+ * transition. Since we never close the kvm files
+ * (there's no reason), make sure we don't open them
+ * each time, as that can lead to exhaustion of all open
+ * files! */
+ if (!is_kd_setup) {
+ kd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, errbuf);
+ if (kd == NULL) {
+ syslog(LOG_ERR, "%s", errbuf);
+ exit (1);
+ }
+ is_kd_setup = 1;
}
if ((en = kvm_nlist(kd, nl)) != 0) {
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