I am running 1 mildly busy new MySQL server thats running fine on
5.3-RELEASE-p5 #5: Sat Jan 22 04:54:07 EST 2005 from the generic conf
kernel
Its a Dell 1850 Dual P4 Xeon CPU 3.00GHz EMT64 with HTT enabled
FYI I actually have a Dell 2650 thats not doing anything at the moment
because it had sluggish performance when I started to put some
serious burden on it.
I recently updated to the latest MySQL to 4.1.10a from 4.1.5 with
using this set of settings (I hate using ports manually)
portupgrade -Rfri -m 'BUILD_OPTIMIZED=yes BUILD_STATIC=yes'
/var/db/pkg/mysql-server-4.1*
I copied the default large.cnf file to /var/db/mysql/my.cnf for better
performance but thats about it, I am still evaluating MySQL
performance.
To give you a remote idea how busy this MySQL server is, here are some
bits running "mysqladmin extended-status"
| Bytes_received | 49227436 |
| Bytes_sent | 71933703 |
| Threads_connected | 25 |
| Threads_created | 42 |
| Uptime | 101775 |
According to MySQL manual Threads_created gives an idea of the load on
the MySQL server.
phpMyAdmin lists MySQL status in a much nicer way
This MySQL server has been running for 1 days, 4 hours, 38 minutes and
28 seconds.
Query statistics: Since its startup, 335,544 queries have been sent to
the server.
Total ø per hour ø per minute ø per second
335,544 11,715.47 195.26 3.25
select 204,621 7,144.31 61.04 %
insert 29,149 1,017.73 8.70 %
show keys 85,395 2,981.55 25.48 %
This server is doing more things then I originally planned it to do,
its also running a Postgres 7.4 server that has over 500megs of data
and almost constant 100% usage of disk IO according to top via "m", I
have statistics enabled on postgres but no way to show some simple
summaries.
I run Apache2 in prefork mode and currently has around 350 average
apache daemons
ps -auxww | grep -c httpd
356
Its doing over 1 million dynamic page loads a day (some page loads
don't use database)
This server also is running 12 separate Java processes each at around
200megs of size.
Since cvsuping to the latest 5_3 for release security patches and
critical updates the server is been perfectly stable, before that I
did have kernel panic reboot problems that I believe were caused be
massive thread usage from the java processes.
Although I have rebooted just a little while ago the servers uptime is
currently 33days.
With your server how have you been updating your server to 5.3-P5
release? Its possible you have a similar problem.
I am emailing this in HTML format in the hope the tables come out more
nicely.
Regards,
Mike
Young Lee wrote:
I have try your solution yesterday, so far it is stable, and will
observe the stability for some days. btw, i turn "debug.mpsafenet=0"
in /boot/loader.conf to evade the possible network stack deadlock
under SMP.
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