My Server Works Slow But It's Ok Of Memory
Nov 29, 2007
My server is hosted within a Virtuozzo VPS Server, and it runs very slow. Sometimes, when I type commands via shell, it takes 1-2 seconds to be echoed.
I've just checked free memory ('free -m') and it seems to be ok:
Code:
free -m
total used free shared buffers cached
Mem: 8104 7642 461 0 220 3979
-/+ buffers/cache: 3443 4661
Swap: 4094 0 4094
If I check "ps -ef" I don't see any weird process and with "top" the most memory-wasting process is 'mysqld' (0.8%).
Which extra parameters might I check?
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Dec 8, 2008
Does anyone have a problem with volumedrive with accessing your sites?
I have a dedicated server (no load, consumes around 500Mbytes/month) but I my pages open pretty often slow. Today I even cannot open a page because speed is around 1byte/second. Yes, I can access my server, but I cannot wait when a page finishes loading. I wait and wait and wait. Anyone has a similar problem, probably near to me? My ip range: 66.197.221.XX
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May 20, 2007
I finally bought a VPS after not being able to pay for a dedicated server so I bought one from VPSbyte.com as they came highly recomended $39.95 server with Cpanel not the cheapest I gathered but I wanted reliable servers
now I moved my forum over to the server all was ok after I got the massive database sent over but when I tried to view a thread or category I could not it came back with No Valid input or something like that
I went into admin and disabled zoints SEO mod and the forum works fine BTW its a VB forum.
would it be due to mod rewrite that the forum does not work with zoints? and is it possible to get it to work?
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Oct 3, 2013
I found a socket available other than 80 which would not allow me to use. I set it in the conf file as 1800 and then go to apache/bin directory and load httpd.exe. When I go to the browser, I have to type in http://localhost:1800 for it to work once. If I close the browser and try again, or I try a php file, it says it can't find localhost. I have to stop httpd.exe and reload, then it will work once.
Do I have to find a way to use socket 80 for it to work?
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Jan 9, 2008
I can access my web domain by typing...
[url]
But i get no server found error when i type....
www.mysite.com or [url]
I am using LxAdmin Panel, and have added (A) record for www
www A Server IP
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Oct 10, 2009
So this is a new problem for me, and I have no idea what could be broken?
My server works, but none of the sites load.
Server ip is 69.162.121.170, one of the sites is bloghost.cl
Where should I start looking? When you try to visit the site it just tells you it cant establish a connection. All I did was restart the server today, and now nothing works
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Jan 2, 2015
For a while now I've noticed that on Plesk 12 the sw-cp-server init scripts can never restart the sw-cp-server properly. I have to manually kill the master process then restart it:
Code:
# /etc/init.d/sw-cp-server restart
Stopping sw-cp-serverd: [FAILED]
Starting sw-cp-serverd: nginx: [emerg] bind() to 0.0.0.0:6308 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:8443 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:8880 failed (98: Address already in use)
[Code] .....
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Apr 22, 2009
I ordered a vps from knownhost the other day for $50/mo w/ cpanel
I have been using it for:
hosting of my own websites and 5 other clients (15 websites total)
installed a counter-strike source 11slot 100tick 500fps server w/ srctv on it and it RUNS GREAT!! solid 500fps, no lag/choke, wonderful registration!
cpu load maxes at around 60% and ram usage is about 80%
after being with nearly ever game server provider out there my team has agreed that this is the best server we've ever had.
so to all of you people wondering about it, YES, you can run a gameserver on a vps, and I reccommend it to everyone. Not only will it save you money, but you will be able host all your websites and run even a ventrilo server if you want.
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Nov 11, 2008
I've got 25 domains on a Virtuozzo/Plesk8.6/CentOS5 VPS. Each domain has one up-to-date install of WordPress, most have very little traffic (average 200mb per month), maybe 2 domains get 5-7gb traffic per month.
I monitor port 80 connections and rarely see more than 10 at a time.
That should in my opinion be no problem at all for a VPS with 768mb guaranteed ram and 2.4ghz cpu. I've got 30gb hard drive spare too.
But.... about 8 or 10 times a day it grinds to a complete halt: server load at 500-1000%, sites timing out, plesk takes 3mins to load, often I can't even connect with SSH, and the plesk web server, apache
INSERT INTO module_watchdog_sys_stat (time, type, value, service_id) VALUES(FROM_UNIXTIME(1226404705), 'MAINMEM_USAGE', 17472, 11);
80 seconds sounds like a huge amount of time for a MySQL insert to me! Does anyone know if this is likely to be the cause of my trouble? Some problem with Plesk and the database? Or could it be something else?
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Jun 12, 2009
I have a VPS. And have had an issue both when it was 1Gig and now I recently downgraded it to 768m, because I am moving some sites to a dedicated.
However, the part I am having trouble grasping is that when I look at graphs from Munin, it will typically always show 200-400MB free memory (and free -m and top agrees with munin), but Munin shows 'committed' memory that is above the total Ram on the VPS and once the 'committed' ram exceeds the VPS limit, processes start failing.
So, why is 'committed' memory exceeding the RAM on my VPS, when Munin, free -m and top all show there is free memory available?
Code:
root@server [~]# free -m
total used free shared buffers cached
Mem: 768 449 318 0 0 0
-/+ buffers/cache: 449 318
Swap: 0 0 0
Here's a graph that munin produces that shows the 'committed' memory exceeding the total memory.
[url]
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Apr 9, 2007
this is my server and i host only one site as upload image but it is too slow and usully apache down
how i can optimize this server please
Processor Information
Processor #1 Vendor: GenuineIntel
Processor #1 Name: Intel(R) Pentium(R) 4 CPU 2.26GHz
Processor #1 speed: 2262.422 MHz
Processor #1 cache size: 512 KB
Memory Information
Memory: 1002104k/1015744k available (2150k kernel code, 12844k reserved, 716k data, 164k init, 98240k highmem)
System Information
Linux 2.6.9-42.0.3.EL #1 Fri Oct 6 05:59:54 CDT 2006 i686 i686 i386 GNU/Linux
Physcial Disks
Current Memory Usage
total used free shared buffers cached
Mem: 1003164 976220 26944 0 102932 471740
-/+ buffers/cache: 401548 601616
Swap: 1052216 171412 880804
Total: 2055380 1147632 907748
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Jan 6, 2008
frends now iam haveing dedicated server with pentium-4 and RAM is 2GB,my site online members is more than 100 members,now i feel slow in server,what i have add extra RAM or any chage in server
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Jun 19, 2007
Why is my hosting server usually slow and down?
CPU Usage : 100%
Main : >3GB (total physical memory: 3GB)
i dont know Do user access to website that are hosted on my server too crowded make server slow while bandwidth only have 4MB.
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Sep 7, 2007
Server is dead slow. Its 3.0 1GB Ram Plesk Lniux Red Hat E4 machine. The top -c result is as below.
197 total, 6 running, 191 sleeping, 0 stopped, 0 zombie
Cpu(s): 4.0% us, 1.7% sy, 0.3% ni, 0.0% id, 94.0% wa, 0.0% hi, 0.0% si
Mem: 1027556k total, 953880k used, 73676k free, 23604k buffers
Swap: 2040244k total, 102308k used, 1937936k free, 87872k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3167 mysql 15 0 288m 67m 4336 S 0.8 6.8 40:37.97 /usr/libexec/mysqld --defaults-file=/etc/my.cnf --basedir=/usr --
3247 apache 18 0 125m 75m 4344 D 0.7 7.5 0:00.34 /usr/sbin/httpd
3039 root 26 10 13628 5808 2656 S 0.3 0.6 0:00.69 mytop
3250 apache 16 0 121m 71m 4520 R 0.3 7.1 0:00.35 /usr/sbin/httpd
4671 apache 15 0 141m 89m 6512 S 0.2 9.0 0:57.54 /usr/sbin/httpd
1882 popuser 15 0 4176 700 564 S 0.2 0.1 0:00.17 /usr/bin/pop3d Maildir
2111 popuser 15 0 4036 712 564 S 0.2 0.1 0:00.47 /usr/bin/pop3d Maildir
3327 apache 17 0 124m 73m 5556 R 0.2 7.3 0:00.50 /usr/sbin/httpd
1 root 16 0 3580 484 456 S 0.0 0.0 0:02.11 init [3]
2 root 34 19 0 0 0 S 0.0 0.0 0:14.01 [ksoftirqd/0]
3 root 5 -10 0 0 0 S 0.0 0.0 0:00.56 [events/0]
4 root 9 -10 0 0 0 S 0.0 0.0 0:00.00 [khelper]
5 root 15 -10 0 0 0 S 0.0 0.0 0:00.00 [kacpid]
19 root 5 -10 0 0 0 S 0.0 0.0 0:00.00 [kblockd/0]
40 root 10 -10 0 0 0 S 0.0 0.0 0:00.00 [aio/0]
20 root 15 0 0 0 0 S 0.0 0.0 0:00.00 [khubd]
39 root 15 0 0 0 0 S 0.0 0.0 4:09.01 [kswapd0]
186 root 25 0 0 0 0 S 0.0 0.0 0:00.00 [kseriod]
295 root 15 0 0 0 0 D 0.0 0.0 2:29.80 [kjournald]
1373 root 6 -10 2272 376 372 S 0.0 0.0 0:00.02 udevd
1606 root 6 -10 0 0 0 S 0.0 0.0 0:00.00 [kauditd]
1648 root 6 -10 0 0 0 S 0.0 0.0 0:00.00 [kmirrord]
1672 root 15 0 0 0 0 S 0.0 0.0 0:00.00 [kjournald]
1673 root 19 0 0 0 0 S 0.0 0.0 0:00.00 [kjournald]
2443 root 15 0 1608 528 456 D 0.0 0.1 2:14.13 syslogd -m 0
2447 root 16 0 2696 368 316 S 0.0 0.0 0:00.00 klogd -x
2474 rpc 15 0 3304 404 400 S 0.0 0.0 0:00.00 portmap
2493 rpcuser 18 0 2648 528 524 S 0.0 0.1 0:00.00 rpc.statd
2519 root 16 0 4672 188 152 S 0.0 0.0 0:00.10 rpc.idmapd
2590 root 15 0 1952 436 284 S 0.0 0.0 0:00.07 /usr/sbin/smartd
2599 root 19 0 1940 356 352 S 0.0 0.0 0:00.00 /usr/sbin/acpid
2659 named 16 0 43736 7664 1884 S 0.0 0.7 12:22.15 /usr/sbin/named -u named -c /etc/named.conf -u named -t /var/name
2702 root 16 0 4956 912 792 S 0.0 0.1 0:03.86 /usr/sbin/sshd
2715 root 16 0 3104 712 620 S 0.0 0.1 1:02.87 xinetd -stayalive -pidfile /var/run/xinetd.pid
2869 postgres 16 0 19772 1440 1332 S 0.0 0.1 0:00.08 /usr/bin/postmaster -p 5432 -D /var/lib/pgsql/data
2873 postgres 18 0 10572 216 176 S 0.0 0.0 0:00.00 postgres: stats buffer
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Mar 5, 2007
My server is so slow I don’t know where the problem is
Server Load from 2 to 8 Monthly bandwidth 1300 GB Unique visitor 4000 - 5000 daily Page loads 13.000 – 20.000
This is current server features
Intel Pentium 4 2.8Ghz 1024MB RAM Bandwidth: 1500GB
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May 14, 2009
I dont know much about what could be cuasing this so i come to you for advice, i am currently at wired tree on their VPS384 package with 348MB of ram and my site is really slow to load [url]sometimes it is so embaressing to show people i just dont bother, i am sure this is deferring visitors from my content how can i speed this up?
I can add more ram but it will push the price and if the price goes too high i might aswell move to a Hybrid with wiredtree.
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Jun 22, 2009
problem with my server running CentOS 5.3.
I noticed that there are huge pings to my server from time to time, example:
------------------
64 bytes from HOSTNAME (server-IP): icmp_seq=0 ttl=60 time=2.93 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=1 ttl=60 time=2.70 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=2 ttl=60 time=1901 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=3 ttl=60 time=899 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=5 ttl=60 time=2.69 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=6 ttl=60 time=2.62 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=4 ttl=60 time=2132 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=8 ttl=60 time=2.57 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=7 ttl=60 time=1190 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=10 ttl=60 time=2.65 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=9 ttl=60 time=1048 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=12 ttl=60 time=2.74 ms
64 bytes from HOSTNAME (server-IP): icmp_seq=11 ttl=60 time=1205 ms
------------------
First I thought that it is network related, but most strange for me was that I did not have any packets lose.
Then I tried to ping from my server to other hosts - situation was the same - some ping were good and some were huge (700ms, 800ms, even 2000ms)
I checked:
cat /proc/sys/net/ipv4/netfilter/ip_conntrack_max
and it was 65536
Then I checked:
cat /proc/sys/net/ipv4/netfilter/ip_conntrack_count
and it was ~1600 so normal.
dmesg was showing such errors:
conntrack_ftp: partial 227 3331059707+13
Then I checked ifconfig, here is the output:
------------------
eth0 Link encap:Ethernet HWaddr 00:24:21:57:2B:6F
inet addr:MAIN=IP Bcast:BCAST=IP Mask:255.255.255.192
inet6 addr: fe80::224:21ff:fe57:2b6f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:170557113 errors:0 dropped:2421127049 overruns:0 frame:0
TX packets:182047660 errors:0 dropped:46 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2756835074 (2.5 GiB) TX bytes:79640621 (75.9 MiB)
Interrupt:82 Base address:0xe000
------------------
Strange for me was:
RX packets [...] dropped:2421127049
TX packets [...] dropped:46
I did not have such dropped information on all my other servers. Dropped counter for RX was constatnly increasing.
So I decided to restart all services on the server. After restarting network and ipaliases - problem disappeared. RX dropped counter is still rising, but I do not have any slowdowns on the server and pings are normal.
My question is - does anyone could have any idea what can casue my problem and how can I prevent this in the future?
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Nov 6, 2009
i have a strange problem at my server ,
i hosted 1 wesite ( forum script with no plugins )
when my traffic consuption reache to 25mbs the server running very slow for hours although the load avarage is very normal 1-2 Iowait 3% ram consumption 8-10Gb
my uplink port 1Gb and of course my DC said the connection is normal with no limitation
the server specs are good
Quad procs 7200 ,16Gb ram ,15K SCSI speed
connections reache to 2000-2500 per seconds
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Mar 13, 2008
My dedicated server starts to be a bit too slow.
But on Munin it seems just fine.
what can i do to solve this problem ?
This is the link to munin :
[url]
and this is what i have :
Quote:
Tier 1 Bandwidth: 2000GB
Operating System **Select One**: Ubuntu Server Edition (6.0x)
Memory: 6144MB RAM
Uplink Port Speed - Disc: 100mbps
Processor: Dual Processor Dual Core Xeon 5160 3.0GHz Woodcrest 2 x 4MB cache
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Apr 24, 2008
My server gets 300 - 600 concurrent connections to http port 80, has a CPU load of 1 - 2%, has practically all RAM of 1 GB used, is running apache 2 and centos 5.
It tends to get slow and when I ban IPs that use many connections to my server (raping it), it becomes fast again. But soon after that new ******* users come which I again ban and the process repeats itself
I'm starting to think that maybe I just don't have enough RAM to handle them because it seems at least some of those users are legit. I don't however have even that much content that needs to be cached so I'm not sure what good RAM would do but perhaps apache just needs more.
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Oct 31, 2008
Server is responding slow!
My server is responding slow
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Jun 11, 2008
How can I prove to my web hosting company that the server is extremely slow and overloaded?
If I call support, they are saying that it is fine for them. But I've checked with different internet connections and it's slow.
I want to be moved to another server or get a partial refund or something. At this point my website is unusable during peak business hours.... and I get barley any traffic.
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Nov 17, 2007
My server (Xeon 3.0Ghz) went down for no reason yesterday and ever since it was rebooted (and I've rebooted a couple of times since then), pages load extremely slowly or just timeout. Server load is constantly hovering around 1 and top stats indicate that the server's resources are not under heavy load, which is contrary to the usual pattern during peak times.
I've checked netstat and I notice a lot of SYN_RECV. Could this be a DoS attack? If so, what steps do I take to stop it?
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Jan 23, 2007
i have installed redhat Cent O.S 4.2 on my sever.
while client is accesing its homepage , it has a slow response.
when client use ftp for file transfer, response from server is slow.
i am running php software and MYSQL database in my server.
i am using 80GB hard disk and still 28GB freespace is remaining.
i have 512 MB of memory, in which currently 91 MB is still free.
o/p for " vmstat" command is
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 0 160 91296 40656 287300 0 0 9 7 60 34 0 0 100 0
o/p for "free" command is
total used free shared buffers cached
Mem: 507932 416572 91360 0 40636 287284
-/+ buffers/cache: 88652 419280
Swap: 779144 160 778984
o/p of "top" command is
top - 14:31:52 up 2 days, 1:12, 2 users, load average: 0.00, 0.00, 0.00
Tasks: 74 total, 1 running, 73 sleeping, 0 stopped, 0 zombie
Cpu(s): 1.7% us, 0.0% sy, 0.0% ni, 98.3% id, 0.0% wa, 0.0% hi, 0.0% si
Mem: 507932k total, 416772k used, 91160k free, 40612k buffers
Swap: 779144k total, 160k used, 778984k free, 287268k cached
In the /var/log/messages there are no errors
But in the /var/log/httpd/error_log it is showing a long list of same error i.e" an unknown filter was not added :PHp".in this way my server is responding very slow for ftp and while accesssing through http.will u pls help me to solve this problem.
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Sep 9, 2008
I'm based in the UK and recently I purchased a midphase ns01 dedicated server.
All was going well until I decided to test out downloading a file from the server. The transfer rate on the download was and still continues to be terrible. (I did a traceroute and ping on the server as shown below.)
My ISP is AOL with a connection speed of 100 mbps.
Heres the traceroute and ping of my midphase server...
Midphase traceroute
Tracing route to ---.com [000.00.000.000]
over a maximum of 30 hops:
1 * * * Request timed out.
2 40 ms 38 ms 38 ms host-000.00.000.000.as43234.net [000.00.000.000]
3 44 ms 42 ms 40 ms 000.00.000.000
4 42 ms 41 ms 41 ms xe-10-3-0-scr001.log.as13285.net [78.144.2.135]
5 41 ms * 51 ms Opal-ge-2.2.0.mpr1.lhr2.above.net [213.161.78.209]
6 115 ms * 109 ms so-0-1-0.mpr1.dca2.us.above.net [64.125.27.57]
7 113 ms 111 ms 113 ms xe-1-1-0.er1.iad10.above.net [64.125.26.238]
8 202 ms 110 ms 110 ms dcp-brdr-03.inet.qwest.net [63.146.26.61]
9 190 ms 191 ms 192 ms tuk-core-01.inet.qwest.net [67.14.4.106]
10 190 ms 190 ms 191 ms tuk-edge-09.inet.qwest.net [205.171.11.70]
11 197 ms 194 ms 195 ms te2-1.cer02.sea01.seattle-datacenter.com [65.112.24.22]
12 195 ms 197 ms 195 ms po02.fcr01.sea01.seattle-datacenter.com [67.228.118.138]
13 * 239 ms 240 ms 000.00.000.000-static.reverse.softlayer.com [000.00.000.000]
Trace complete.
Midphase Ping
Pinging -------.com [000.00.000.000] with 32 bytes of data:
Reply from 000.00.000.000: bytes=32 time=199ms TTL=51
Reply from 000.00.000.000: bytes=32 time=195ms TTL=51
Reply from 000.00.000.000: bytes=32 time=192ms TTL=51
Reply from 000.00.000.000: bytes=32 time=189ms TTL=51
Ping statistics for 000.00.000.000:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 189ms, Maximum = 199ms, Average = 193ms
========================================================
I was just wondering if anyone based within the uk was experiencing similar problems with midphase or perhaps has some suggestions as to how I can remedy this problem?
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Jul 29, 2006
The subject line pretty much sums up my major problem. My site has been intermittently slow (somtimes slow, sometimes not) for... like since I can remember. So my site isn't that big
Sometimes for me it takes forever to load a vbulletin page, or even the main page of the site. I thought I had found the problem (a mysql-intensive script), removed it, improved things quite a bit, but there is still a long way to go!
Many site users report the same exact things.
"The site is sloowww" ...
"It wasn't slow yesterday but it is today" ...
"Today it's really fast, but last week I was having problems pulling up pages".
Its fustrating becase this is a VPS, and although I know how to use Cpanel, WHM is really big and I am not sure what I could do to speed up my website or to even begin to locate any potential problems.
My site is basically Joomla CMS, vBulletin BBS and 4images image gallery. The later two use a common user database. My current mysql usage is 327.55MB in total. Apache 1.3.34, PHP 4.4.1 and MySQL 4.1.19-standard. Powered by WHM/Cpanel & Virtuozzo.
What should I do? Where can I start? Where can I look?
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Jun 9, 2009
I have a dedicated server that I am renting that appears to randomly respond very slowly for some reason (pings are between 90-4000ms with about 75% packet loss).
This has been happening lately (about once a week for the past 4 weeks) and I thought I had originally found the cause of the problem but it appears I haven't.
Originally, when this problem was happening we were getting an abnormally high about of traffic but a reboot always fixed the issue. I've checked every where I can think of but I cannot find anything out of the ordinary.
ight now we're averaging less than 2Mbps in traffic, the CPU load is less than 0.75, the memory usage is at 55% with no swap being used, Apache connections are normal, no active SSH, FTP, or mail connections, I've restarted all services which had no impact, I've checked the access and error logs but can't see anything out of the ordinary.
I have a ticket open with the data center but I'm trying to figure this out on my own to fix whatever is causing this so I can move my data over to a new server we just got setup over the weekend in a local data center.
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Mar 1, 2008
I rented a server from VD a month ago and hosted some of my websites. But I'm constantly noticing that my websites are loading very slow. How can I check if other users are experiencing the same problem, or if the problem lies with my Internet connection?
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Apr 20, 2008
I used the mail function in php to send mails to my 25000 members in a loop..
After using it my server has gone very slow.. Load has increased a lot from 2 to around 20.. Major load is taken by sql and then httpd (both have increased)..
I had restarted mysql and httpd.. even reinstalled apache but no help..
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Jan 22, 2008
I have a dual processor, dual core server with 12GB memory.. It uses less than 4% CPU utilization and less than 5% memory utilization, but for some reason It's really slow to load sites...
I know this isn't much information, but would any have any ideas as to what could cause the slow speed?
If is anyone is available to look at it, I'll pay you (obviously).
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