6 More Discussions You Might Find Interesting
1. IP Networking
I have noticed that the initial congestion window in my traces is 8920bytes~=6*1448. rfc3390 states the initial cwand should be max 4000 bytes(around 3*1448).
At first i thought it might be because i'm running my server on mac os x, so apple might have modified the tcp stack. Therefore I tried... (2 Replies)
Discussion started by: ddayan
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2. Red Hat
as advised and documented, i'm trying to use the ntpd -gq instead of ntpdate. The result is that clock not set. as below. However ntpdate is working ok and had set the clock correctly
this is the ntp.conf file:
# cat /etc/ntp.conf
logfile /var/log/ntp.log
driftfile /var/lib/ntp/drift... (6 Replies)
Discussion started by: ahmad.zuhd
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3. Shell Programming and Scripting
I need to replace the line daemon ntpd $OPTIONS in the following script with daemon ntpd $OPTIONS 2>&1 > /var/log/ntpd.log &
what will happen?
The idea of replacing is to capture the output on the console into ntpd.log file.
Will this work?
... (1 Reply)
Discussion started by: naive1977
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4. AIX
How to check the ntpd version of AIX 5.3 ? (3 Replies)
Discussion started by: alanlkw
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5. Linux
Hi Linux Admin Guys
My onsite server is always 15 min slow and seems like NTPD (Network Time Protocol (NTP) daemon) not running properly. can anyone suggest me how to rectify this problem? we can't seem to get NTP to properly sync the clock.
Any help is resolving the issue will be helpful.... (12 Replies)
Discussion started by: csaha
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6. HP-UX
Hello,
I'm looking for assitance on setting up network time protocol on my HP-ux boxes.
I have edit the .conf file accordingly. And /etc/services. But whenever I try and start the service nothing happens at all. No error message, nothing.
I have a SCO box as a time server and I wish... (0 Replies)
Discussion started by: satinet
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LEARN ABOUT SUNOS
gethrtime
gethrtime(3C) Standard C Library Functions gethrtime(3C)
NAME
gethrtime, gethrvtime - get high resolution time
SYNOPSIS
#include <sys/time.h>
hrtime_t gethrtime(void);
hrtime_t gethrvtime(void);
DESCRIPTION
The gethrtime() function returns the current high-resolution real time. Time is expressed as nanoseconds since some arbitrary time in the
past; it is not correlated in any way to the time of day, and thus is not subject to resetting or drifting by way of adjtime(2) or settime-
ofday(3C). The hi-res timer is ideally suited to performance measurement tasks, where cheap, accurate interval timing is required.
The gethrvtime() function returns the current high-resolution LWP virtual time, expressed as total nanoseconds of execution time.
The gethrtime() and gethrvtime() functions both return an hrtime_t, which is a 64-bit (long long) signed integer.
EXAMPLES
The following code fragment measures the average cost of getpid(2):
hrtime_t start, end;
int i, iters = 100;
start = gethrtime();
for (i = 0; i < iters; i++)
getpid();
end = gethrtime();
printf("Avg getpid() time = %lld nsec
", (end - start) / iters);
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
proc(1), adjtime(2), gettimeofday(3C), settimeofday(3C), attributes(5)
NOTES
Although the units of hi-res time are always the same (nanoseconds), the actual resolution is hardware dependent. Hi-res time is guaran-
teed to be monotonic (it won't go backward, it won't periodically wrap) and linear (it won't occasionally speed up or slow down for adjust-
ment, like the time of day can), but not necessarily unique: two sufficiently proximate calls may return the same value.
SunOS 5.10 7 Sep 2004 gethrtime(3C)
