Which CPU For Web Server Tasks? Higher Clock Speed Or More Cores
Jan 8, 2009
which type of CPU would be better for a web server that will run Windows, PHP, ColdFusion, mail, DNS, and IIS. Would a dual core CPU with a higher clock speed do better than a quad core CPU with lower clock speed? For instance, would a dual core 3 Ghz processor do better than a quad core at 2.4Ghz?
to pickup a dedicated MySQL 5 server from Dell running Linux. I have the option of either getting:
(1x) Quad Core Xeon E5430 2x6MB Cache 2.66Ghz
OR
(2x) Quad Core Xeon E5405 2x6MB Cache 2.00Ghz
They are about the same price. What option is best? The 4 cores but 666mhz faster each core, or double the cores (8), but less mhz per core. Can MySQL 5 even use 8 cores effectivley?
I've just migrated server to server but I didn't use the migration manager, I simply backed up each domain's content and restored those backups on the new server.
The issue I have run into is the scheduled tasks at the admin level (Tools & Settings > Scheduled Tasks) work but any schedule task under a domain do not. The scheduled tasks under the domains show as inactive (no green tick) and when I click to enable them, I get the following message
"Information: The scheduled task Google Product Feed Daily Scheduled Task was switched on."
If I then look at the page, even though the above message says it is, the scheduled task is still not enabled. Going into the scheduled task and switching it on there results in the same message, but it doesn't switch on.
How to rebuild all of the scheduled tasks within Plesk?
Normally on our slowest day of the week, RAM usage is around 20%-25%. We see RAM usage increase as more users hit the site, thus, RAM usage historically, has been tied to public bandwidth. Recently, RAM usage has been hitting 32%-35% on our slowest day of the week (as indicated by bandwidth usage). I am guessing that something is keeping apache threads opened and/or a cron-driven process which invokes httpd isn't finishing for whatever reason. This is only my guess after some research and looking at whm reporting and top. With my limited server knowledge, these are only my guesses.
1. What could be causing this increase RAM usage?
2. How do we find out what is causing it?
3. We did recently installed the OpenX ad server but there are no ads being served, we just implemented the CRON job for testing purposes. Maybe this could be the cause but how do we tell?
In order to increase the reliability of a audio streaming service I am thinking to take the action I describe below.
1. Buy two Windows VPSs with WMS installed.
2. Register a domain name (i.e audiostream.com) with 4 nameservers: ns1.ip1_vps1, ns2.ip2_vps1, ns3.ip1_vps2, ns4.ip2_vps2.
3. Create all publishing points (streams) on both servers.
Normaly VPS1 should serve all clients. In case VPS1 goes down, VPS2 should jump in and serve all clients-connections. As soon as VPS1 becomes available (ns1 & ns2 start responding again), VPS1 starts serving all new connections.
Load balancing or any other kind of advanced load, traffic, etc management is not important.
Then we have the following cases: 1. VPS1 is down , which means that VPS2 should take charge.
2. VPS1 is up (ns, http, ftp services), but WMS1 is down (crashed). Means that the playlist (asx) file should be built so that it also includes the IP, port & publishing points of VPS2. This should be done because ns1 & ns2 will answer without any problem, but WMS1 will be crashed and won't serve any media connections, thus ASX will look for the next available stream in the playlist.
Do you think that the above is possible. Is this gonna work?
I'm on a vps and sometimes hit 100% of my allowable cpu - this company allows me to burst to one cpu but no farther. I also have a new vps at Servint and have yet to learn their cpu allotments.
My older host that is hitting CPU limits and slowing and having times of outages, suggest i take their high end 4 CPU cores (Intel Clovertown E5310 or better), SAS/SCSI drives (in RAID), 8 GB memory for just $250/month (basic management, no control panel).
CPU is my weak point so should i consider 8 cores?
I can add 3 times the volume of traffic once I'm capable of handling it.
We are trying to use the new Wordpress toolkit, but when we try to install an instance it says this:
Contact your service provider for assistance. Upgrade the system PHP CLI to version 5.3.0 or later, or set the correct path to the PHP CLI in the clipath option of the php_handler utility for a custom PHP handler.
Screenshot:
Now that would not be a problem if the requirements were not met, but there are installed PHP versions that are higher than 5.3 and the website is configured to us these versions...
I select a vps of Smokyhosts last friday, but I found the clock of it an hour off the correct time,
eg. I set the timezone to UTC, the correct NTP time is 3:00, but the clock of vps is display 2:00, It's an hour before the correct time.
I think this is an error when they first set the clock of host node, I send several tickets to Smokeyhosts support, but they told me I can set to another timezone not in my country, I think this is not reasonable.
and they told me they do not allow any time change requests for the hardware node even if it's error.
Since the clock of VPS is an hour error, even if I can set another timezone not my country. but if I have a forum on this VPS, and user can set their own timezone settings, they would be puzzled to find what they seclectd timezone is always an hour off,
I must be explain this to them? I think this is not acceptable.
I understand the NTP would be impossible to all VPS, but they should ensure the host node's clock is correct relatively, now it's an hour off, I think they can correct this easily if they would like to do.
another small question is when I get the vps, Mysql was installed, but the user "mysql" is not exist in system, So mysql service can't start, I add this myself, and it's ok.
Now all other things looks well except the clock.
their support always response quickly, i'm very satisfied with them.
I just got an Atom 330 and it shows that i have 4 Cores. Is it normal?
cat /proc/cpuinfo | grep Atom model name : Intel(R) Atom(TM) CPU 330 @ 1.60GHz model name : Intel(R) Atom(TM) CPU 330 @ 1.60GHz model name : Intel(R) Atom(TM) CPU 330 @ 1.60GHz model name : Intel(R) Atom(TM) CPU 330 @ 1.60GHz
servers for a freehosting project and came across a good quote on some dual quad core amds for $320 a month. Is this about right? I don't want to give the exact location away as this was a custom quote but it's located in chicago. The network is Internap FCP optimized with internap, level3, and comcast.
I have an VPS at cheapvps.co.uk since November 2007. It has worked like a charm until a week ago. Since the massive crack from last week and the subsequent shutdown & boot, the clock on my VPS is going crazy.
Clock is really accelerated, a minute in the real world equals to more than 2 minutes within the VPS. I'm having lots of problems with dates in the future, and cheapvps support team is working to get this solved with no success.
One of our server's system clock seems to gradually creep away from the correct time. It has been causing us a lot of issues. After one day it becomes more than one hour off. After each minute it becomes a few seconds off.
Any ideas what could be causing this? It's uptime is ~2 months so it doesn't happen when it goes offline, it happens while it is running.
Right now we have a cronjob running ntpdate every few minutes as even with the ntpd service running it would end up off by several minutes when we would check. I have a feeling this isn't a very reliable fix though.
There is serious clock skew all across the 4 CTs I have put in an OpenVZ HN which runs Debian GNU/Linux, the kernel Linux is v2.6.26, waldi tree. The HN shows correct time, the CMOS RTC is bang correct.
Let me try this question in here as I think there are many companies in here who have remote employees.
Can anyone recommend an online punch clock system to keep track of employee time in's and out's? We would need something that is easy to do payroll and it has to be online so remote users can easily access it.
Is this behavior normal when running a utility such as bonnie++?
I'm running bonnie++ to check for the performance of my drive. When it gets to the part of Writing with putc()... the syslog starts to pop the message in the screen saying:
Message from syslogd@machine at Wed Jun 20 18:06:41 2007 ... machine kernel: CPU0: Temperature/speed normal
I'm using the following OS:
OS CentOS 5
This is the uname information:
Linux machine.domain.com 2.6.18-8.el5 #1 SMP Thu Mar 15 19:46:53 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux
This is the output of bonnie++
[root@machine ~]# bonnie++ -x 3 -u 0 -n1 Using uid:0, gid:0. name,file_size,putc,putc_cpu,put_block,put_block_cpu,rewrite,rewrite_cpu,getc,getc_cpu,get_block,get_block_cpu,seeks,seeks_cpu,num_files,seq_create,se q_create_cpu,seq_stat,seq_stat_cpu,seq_del,seq_del_cpu,ran_create,ran_create_cpu,ran_stat,ran_stat_cpu,ran_del,ran_del_cpu Writing with putc()...done Writing intelligently...done Rewriting...done Reading with getc()...done Reading intelligently...done start 'em...done...done...done... Create files in sequential order...done. Stat files in sequential order...done. Delete files in sequential order...done. Create files in random order...done. Stat files in random order...done. Delete files in random order...done. bigblue.diversityjobs.com,8G,63756,90,96753,25,43654,9,66384,94,104946,10,292.7,0,1,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++ Writing with putc()... Message from syslogd@bigblue at Wed Jun 20 18:06:41 2007 ... bigblue kernel: CPU0: Temperature/speed normal done
Message from syslogd@machine at Wed Jun 20 18:06:43 2007 ... bigblue kernel: CPU1: Temperature above threshold, cpu clock throttled
I am running windows 2003, and I patched it with the timezone windows update, everything was fine, but when I looked today, the clock is one hour slow.
But when I run my php scripts, it shows the time being correct. I thought php grabbed the time from the system? Perhaps this is just a bug with the clock, and the internal system time is correct? It is the only thing I can think of.
I'm trying to upgrade from php 5.2.0 to 5.2.2 but for some reason I receive the following errors:
/scripts/easyapache
Quote:
make [@php-5.2.2]...(-j 2 clean)....Done make [@php-5.2.2]...(-j 2)................................. Message from syslogd@matrix at Sat Jun 2 15:06:17 2007 ... matrix kernel: CPU0: Temperature above threshold
Message from syslogd@matrix at Sat Jun 2 15:06:17 2007 ... matrix kernel: CPU1: Temperature above threshold
Message from syslogd@matrix at Sat Jun 2 15:06:17 2007 ... matrix kernel: CPU1: Running in modulated clock mode
Message from syslogd@matrix at Sat Jun 2 15:06:17 2007 ... matrix kernel: CPU0: Running in modulated clock mode .............. Message from syslogd@matrix at Sat Jun 2 15:06:31 2007 ... matrix kernel: CPU0: Temperature above threshold
Message from syslogd@matrix at Sat Jun 2 15:06:31 2007 ... matrix kernel: CPU1: Temperature above threshold
Message from syslogd@matrix at Sat Jun 2 15:06:31 2007 ... matrix kernel: CPU1: Running in modulated clock mode
Message from syslogd@matrix at Sat Jun 2 15:06:31 2007 ...
I have worked with VMWare quite a bit, and have found that no matter what tweaking you do a clock skew of up to a minute (relative to the host clock, itself kept accurate enough via NTP) is unavoidable at times, at least for a Linux 2.6.x based guest.
Do any of the common technologies allow guests to be kept more closely in sync with the host clock and so be more accurate (assuming the host's clock isn't wide of the mark, of course)? Do some of the technologies work OK with using NTPd to regulate the guest clock (under VMWare this is bad idea as it "conflicts" with VMWares own clock synchronisation method potentially making things worse than they otherwise would be).
The reason for the question is that I'm playing with some code that will run on a few different locations and while I can use an external source to fake a clock to the accuracy I want (+/- a second or two) most of the time, I wouldn't have to if I could rely on the VM's wall-clock being that accurate. If the project goes anywhere (my toy projects usually don't!) it would use real machines, but at this stage I'd rather avoid that expense/hassle.
Can not change in 24 hour Clock mode Plesk 12?The scheduled backups start false, because in Plesk 12 running 12 hours mode.The language in Plesk is German.
after creating a new cron job, when i try to open Scheduled Tasks i get this error :Internal error: DateTime::__construct(): Failed to parse time string (2015-05-28 0.12:0:37) at position 17 ): Unexpected character
Message DateTime::__construct(): Failed to parse time string (2015-05-28 0.12:0:37) at position 17 ): Unexpected character File Helper.php Line 143 Type Exception