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  • How does it hurt to use Linux (Ubuntu) as a guest OS for all my tasks?

    - by sauparna
    I have a machine running Windows, where the disk has two partitions C (50 GB) and D (250GB). I do research in Information Retrieval and need to work with a large corpus (more than 50 GB) and in Linux. So if I want to install Linux on the existing system, keeping the Windows installation intact, will it be fine to run it in a virtual box? (say, QEMU, VMWare, etc.) An alternative is using Wubi. In that case the Linux installation has to be on drive C. Then, if I keep a small Linux installation (say 5GB) on C, and my corpus on D (mounted in Linux), how will it affect the performance of my programs which would be accessing the mounted Windows drive D. Is it feasible to use Linux this way? Which of the above is better if at all they are a way out? Note : Since my post in July 2010, I have been using and have tried several ways of maintaining a disk-image that I can mount in Linux. I had a 100GB qcow2 disk and a 100GB raw disk, both formatted to an EXT3 file system. I was mounting and connecting to the qcow2 disk using qemu-nbd. The problem was that every now and then, the connection to the disk would get lost and the running programs would throw disk I/O errors. The raw disk would mount and work fine as a loop mounted device, but when writing data to it, the mount.ntfs program would hog the CPU and the process would take an enormous amount of time. I was in fact running make on a piece of software located on this raw disk, and after a point of time make was waiting while mount.ntfs would show 100% CPU usage.

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  • MySQL is killing the server IO.

    - by OneOfOne
    I manage a fairly large/busy vBulletin forums (running on gigenet cloud), the database is ~ 10 GB (~9 milion posts, ~60 queries per second), lately MySQL have been grinding the disk like there's no tomorrow according to iotop and slowing the site. The last idea I can think of is using replication, but I'm not sure how much that would help and worried about database sync. I'm out of ideas, any tips on how to improve the situation would be highly appreciated. Specs : Debian Lenny 64bit ~12Ghz (6 cores) CPU, 7520gb RAM, 160gb disk. Kernel : 2.6.32-4-amd64 mysqld Ver 5.1.54-0.dotdeb.0 for debian-linux-gnu on x86_64 ((Debian)) Other software: vBulletin 3.8.4 memcached 1.2.2 PHP 5.3.5-0.dotdeb.0 (fpm-fcgi) (built: Jan 7 2011 00:07:27) lighttpd/1.4.28 (ssl) - a light and fast webserver PHP and vBulletin are configured to use memcached. MySQL Settings : [mysqld] key_buffer = 128M max_allowed_packet = 16M thread_cache_size = 8 myisam-recover = BACKUP max_connections = 1024 query_cache_limit = 2M query_cache_size = 128M expire_logs_days = 10 max_binlog_size = 100M key_buffer_size = 128M join_buffer_size = 8M tmp_table_size = 16M max_heap_table_size = 16M table_cache = 96 Other : > vmstat procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 9 0 73140 36336 8968 1859160 0 0 42 15 3 2 6 1 89 5 > /etc/init.d/mysql status Threads: 49 Questions: 252139 Slow queries: 164 Opens: 53573 Flush tables: 1 Open tables: 337 Queries per second avg: 61.302. Edit Additional info.

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  • Mysterious Windows 7 slowdown problem

    - by cletus
    I have a fairly beefy machine: Intel Q9450 8GB DDR2800 (4x2) Intel X25-M G2 80GB SSD Several other hard drives Windows 7 Ultimate 64 In the last month I've gotten a mysterious slowdown problem. When I start my IDE (IntelliJ IDEA) it usually takes about 20 seconds on the SSD. If my machine has been on for a day or two (as far as I can tell this is the only pattern) and I try to start the IDE, it brings my machine to a halt. CPU usage goes up to 25% per core (so it's basically 100% usage) and it takes up to 5 minutes to start. Other things I've noticed: iTunes will start to skip and stutter (my music is running off a second hard drive). The only persistent things I'm running are: AVG Anti-Virus Spybot (the slowdown predates this) Hamachi and Murmur (again the slowdown predates this) Apple Airport Base Agent HP OfficeJet 8500 driver/manager The browser I use is Chrome. I can't think why that'd be relevant but it's always on so I thought I'd mention it. When this happens I can't see a reason for it in the process list. No CPU hogs. No spikes in IO activity that I can see. Basically I'm at a loss to explain it and need to reboot, at which point everything returns to normal (for awhile). FWIW the Intel SSD is about 75-80% full. I know being too full can really degrade performance. I don't believe that's the issue here. Does anyone have any ideas on what I can do to fix this or at least help find what's going wrong? This same machine (sans SSD) could run Win XP and stay up fine for a month or two.

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  • WMI Sensors monitoring

    - by DmitrySemenov
    Monitoring tool Paessler stopped to monitor WMI Windows Sensors Paessler is Updated to version 12.4.5.3165. (10/30/2012 1:44:11 PM) Paessler windows sensors (against windows server 2008 R2 web edition) stopped to work (no changes have been made on server that we monitor) with the message Connection could not be established (80070005: Access is denied - Host: 192.168.2.10, User: Administrator, Password: **, Domain: ntlmdomain:) (code: PE015) However if I go to Virtual machine used to run Paessler and the following cscript runs successfully: strComputer = "192.168.2.10" Set objSWbemLocator = CreateObject("WbemScripting.SWbemLocator") Set objSWbemServices = objSWbemLocator.ConnectServer _ (strComputer, "root\cimv2", _ "Administrator", "pass") Set colProcessList = objSWbemServices.ExecQuery( _ "Select * From Win32_Processor") For Each objProcess in colProcessList Wscript.Echo "Process Name: " & objProcess.Name Next I'm getting output C:\>cscript test.vbs Microsoft (R) Windows Script Host Version 5.8 Copyright (C) Microsoft Corporation. All rights reserved. Process Name: Intel(R) Xeon(R) CPU X5680 @ 3.33GHz Process Name: Intel(R) Xeon(R) CPU X5680 @ 3.33GHz So WMI works a. I gave Administrator credentials for Device to monitor in Paessler setting, the same I used in the script above b. I restarted windows server (broken sensors) - but this didn't help c. I restarted Paessler probe service - no effect any ideas?

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  • How important is dual-gigabit lan for a super user's home NAS?

    - by Andrew
    Long story short: I'm building my own home server based on Ubuntu with 4 drives in RAID 10. Its primary purpose will be NAS and backup. Would I be making a terrible mistake by building a NAS Server with a single Gigabit NIC? Long story long: I know the absolute max I can get out of a single Gigabit port is 125MB/s, and I want this NAS to be able to handle up to 6 computers accessing files simultaneously, with up to two of them streaming video. With Ubuntu NIC-bonding and the performance of RAID 10, I can theoretically double my throughput and achieve 250MB/s (ok, not really, but it would be faster). The drives have an average read throughput of 83.87MB/s according to Tom's Hardware. The unit itself will be based on the Chenbro ES34069-BK-180 case. With my current hardware choices, it'll have this motherboard with a Core i3 CPU and 8GB of RAM. Overkill, I know, but this server will be doing other things as well (like transcoding video). Unfortunately, the only Mini-ITX boards I can find with dual-gigabit and 6 SATA ports are Intel Atom-based, and I need more processing power than an Atom has to offer. I would love to find a board with 6 SATA ports and two Gigabit LAN ports that supports a Core i3 CPU. So far, my search has come up empty. Thus, my dilemma. Should I hold out for such a board, go with an Atom-based solution, or stick with my current single-gigabit configuration? I know there are consumer NAS units with just one gigabit interface (probably most of them), but I think I will demand a lot more from my server than the average home user. Any advice is appreciated. Thanks.

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  • Computer sponteously reboots when doing heavy file copy to/from disk

    - by Mark Hosang
    I've been fighting with this problem for the last 3 weeks where my machine will just instantly reboot. No BSOD, and when i checked the event log all that was reported was the generic "Kernal-power" error with the detailed information pointing to a hard crash. This is a machine that was working for 18 months before these crashes started happening. When they started happening is after I added 3 HDs in a RAID-5, upped the memory to 12gb, moved to a new house, added a SSD and added about 5 case fans. I have thus eliminated the RAID, and determined that the SSD was not the cause (because it was still crashing even though the ssd wasn't connected). I've run memtest several times over night with no memory problems showing up. I've run IntelBurnTest to max out the cpu to see if it was a heat issue and at full tilt after 20 min it was only at 85C and the machine didn't crash. I also took a look at the voltages during this test, with a screenshot at the bottom of this post I've ruled out a software issue by reinstalling windows 7 ultimate x64 a total of 5 times, but even during that the install it crashes. Happens sometime during file copying at the beginning, or during uncompressing files, or sometimes during running windows update. The only discernible pattern i can see is that it seems to crash when hard disks might be spinning up or when they are accessed heavily from large file transfers. My current guess is that it is probably an issue with the MB, PSU or the power coming through the outlet. Any suggestions of what i could try to troubleshoot or what may be wrong? Specs PSU: Seasonic M12 700w Mem: 12gb CPU: i7-920 with stock heatsink MB: Asus P6T HDs: 3 green WD and 1 Corsair force 3 120b with 1.3.3 firmware Running full tilt voltages Idling Voltages

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  • Difference between CurrentClockSpeed and MaxClockSpeed

    - by Ben
    Rationale this belongs on ServerFault rather than StackOverflow - I already have my program which gets the value, I am querying the value returned and what it means. I have an in-house program which audits our company PCs, and one of the things it checks is the speed of the processor. To do this, it queries the Win32_Processor WMI class and gets the value of CurrentClockSpeed. We were playing with the data today and found an anomaly with some of the speeds being reported incorrectly (for example, CurrentClockSpeed said 1.0GHz, whereas the CPU name said Intel(R) Core(TM)2 CPU T5600 @ 1.83GHz [Confirmed it is in fact 1.83GHz]). I did a bit of digging on the internet and found this blog post which might explain what is going on. My initial thought was that I could change the program to instead get the value for MaxClockSpeed instead of CurrentClockSpeed, but Microsoft's documentation doesn't clearly define what this will return. What I mean by that is will this return a value which is its actual maximum speed (say if it were overclocked) but which it would not normally be running at, or would it return what I expect, which is its maximum speed under normal (not overclocked) conditions?

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  • Debian x86_64 + Nginx + PHP5-FPM optimization

    - by Olal'a
    I used to have a VPS (512MB) from Linode and I was running nginx + php5-fpm (which comes with php5.3.3) on Debian Lenny (i686). The total memory usage was about 90-100MB. Now I have another VPS (different hosting company) and I also run nginx + php5-fpm on Debian Lenny (x86_64). The system is 64-bit, so the memory usage is higher now, about 210-230MB, which I think is too much. Here is my php5-fpm.conf: pm = dynamic pm.max_children = 5 pm.start_servers = 2 pm.min_spare_servers = 2 pm.max_spare_servers = 5 pm.max_requests = 300 That's what top command tells me: top - 15:36:58 up 3 days, 16:05, 1 user, load average: 0.00, 0.00, 0.00 Tasks: 209 total, 1 running, 208 sleeping, 0 stopped, 0 zombie Cpu(s): 0.0%us, 0.0%sy, 0.0%ni, 99.9%id, 0.1%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 532288k total, 469628k used, 62660k free, 28760k buffers Swap: 1048568k total, 408k used, 1048160k free, 210060k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 22806 www-data 20 0 178m 67m 31m S 1 13.1 0:05.02 php5-fpm 8980 mysql 20 0 241m 55m 7384 S 0 10.6 2:42.42 mysqld 22807 www-data 20 0 162m 43m 22m S 0 8.3 0:04.84 php5-fpm 22808 www-data 20 0 160m 41m 23m S 0 8.0 0:04.68 php5-fpm 25102 www-data 20 0 151m 30m 21m S 0 5.9 0:00.80 php5-fpm 10849 root 20 0 44100 8352 1808 S 0 1.6 0:03.16 munin-node 22805 root 20 0 145m 4712 1472 S 0 0.9 0:00.16 php5-fpm 21859 root 20 0 66168 3248 2540 S 1 0.6 0:00.02 sshd 21863 root 20 0 66028 3188 2548 S 0 0.6 0:00.06 sshd 3956 www-data 20 0 31756 3052 928 S 0 0.6 0:06.42 nginx 3954 www-data 20 0 31712 3036 928 S 0 0.6 0:06.74 nginx 3951 www-data 20 0 31712 3008 928 S 0 0.6 0:06.42 nginx 3957 www-data 20 0 31688 2992 928 S 0 0.6 0:06.56 nginx 3950 www-data 20 0 31676 2980 928 S 0 0.6 0:06.72 nginx 3955 www-data 20 0 31552 2896 928 S 0 0.5 0:06.56 nginx 3953 www-data 20 0 31552 2888 928 S 0 0.5 0:06.42 nginx 3952 www-data 20 0 31544 2880 928 S 0 0.5 0:06.60 nginx So, the question is there any way to use less memory? Btw, I have 16 cores and it would be nice to make use of them...

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  • ESXi 5 Guests will not boot

    - by Adrian
    I have a problem with Guests not booting under VMWare ESXi 5.0 on my IBM x3550M3 server. Note: Investigation eventually determined that problem was with the VMware client on a Lenovo Edge laptop, the only Windows box available in a Linux IT shop. vSphere Client v4 and v5 duplicated behavior on the Lenovo Edge. As indicated in the comment to the accepted answer, replacing the workstation with one using different video was the "fix" for this particular issue. The ESXi host boots just fine. The Client connects just fine. Guests can be configured but do not successfully boot. The initial guest memory consumption jumps up to 560MB and drops down to 40MB after a few seconds. Initial CPU usage is 1 full CPU (3000Ghz per the chart) and immediately drops downm to 29Mhz. Guests do not display any output in the Console tab but show a state of 'Powered On'. No errors in the Events tab. Switching Guest from BIOS to EFI makes no difference. VMs are listed as Version 7 and the behavior is duplicated across all availabled Guest OS flavors. Problem also duplicated when server is booted up in Legacy Only mode. Logs do not contain anything particularly suspicious. Edit: No firewalls, routers, or VLANs in between the client and server. Edit 2: We have tried to Boot Guest into BIOS screen at Next Boot checkbox in the Guest Setting. Was not successful. Edit 3: 500GB datastore with 1 40GB VM on it. Plenty of space. Edit 4: Guests copied from my old ESXi 4 server DO NOT boot on the ESXi 5 system. Initially it complains about too little Video RAM being configured for the default 2500x1600, but it still doesn't work properly even after I bump the Video RAM settings or switch it to Auto-Detect.

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  • mysql thread count

    - by Ryan M.
    We have a web application that uses apache and mysql. Generally (according to Munin) our MySQL thread count sits between 2 and 4 at all times. The other day, our server almost came to a halt. HTTP requests were slow or wouldn't go through at all, SSH would work, but would take 30+ seconds to register keystrokes, etc.. So we pull up Munin and the only thing that's out of normal boundaries is the Mysql thread count. CPU usage was under 1%, load was under 1.0, plenty of available RAM. As mentioned before, the thread count floats around 2 to 4. At the time of our slow downs it had spiked to 14. So I start poking around the Internet and I see that in most cases, you'll start to see a higher thread count when you start running into slow queries. If I understand it correctly, the request comes in that takes a while to process, in the mean time other requests are coming in, so a new thread will be created to work on the request (yes?). But at the time of the slow down, we had 0 slow queries. My question is: What else can cause mysql to create additional threads. And would this sudden spike in threads possibly cause the server to slow down? To fix the issue, we restarted apache and everything went back to it's beautiful, normal self. Considering the the Server Vitals (CPU, RAM, Network, etc) were all ideal, and the thread count was the only thing out of place, this seems like the most logical thing to pursue as the possible cause. If it matters, we're on Mysql 5.1.40. Server is FreeBSD 7.2 and the server in question is inside a jail.

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  • VT-x not enabled on 2010 Mac Pro

    - by BlindingDawn
    To start I had a Hackintosh as per the instructions from Lifehacker.com before and moved everything to a new 2010 8 Core Mac Pro. I opted for a restore from the time machine backup rather than using the migration assistance. I believe this may have caused more problems but one in particular is the lack of VT-x support. When I checked Parallels Desktop under "Host Hardware" information, I get the following that shows that VT-x isn't enabled. <Cpu dyn_lists=""> <Number>16</Number> <Model>Intel(R) Xeon(R) CPU E5620 @ 2.40GHz</Model> <Mode>1</Mode> <Speed>2400</Speed> <VtxEnabled>0</VtxEnabled> <VtxMode>1</VtxMode> 1) Does Parallels Desktop support using VT-x? 2) Does this setting show that my VT-x isn't enabled? 3) Is there a way of fixing it so that it is enabled? 4) Is there a way of using my Time Machine backup as if I'm doing a restore using migration assistance and just restore the files and settings?

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  • How to kill tasks in Windows 7 when even Task Manager won't open or respond?

    - by endolith
    Occasionally one of my computers will get so bogged down that everything locks up, Ctrl+Alt+Del doesn't work, Task Manager won't open, or they work, but are opening so slowly that it will take hours or days to shut down other processes and regain control of the computer, etc. Is there a way to, for instance, force Task Manager to be highest priority so it always opens immediately with Ctrl+Shift+Esc even when some other process/driver is hogging the CPU? Is there some other program that can run in the background and open immediately like this? This question isn't about fixing "underlying problems". No matter how much memory you have, it's still possible for a rogue process to eat it all up and lock up the computer in page fault thrashing, hog the CPU, etc. This question is about how to take back control of the computer when that happens. Basically when these kind of lock-ups happen, I want to open some kind of task manager that pauses every other process and allows me to kill one of them, and then let everything resume so I can save my work, etc. Otherwise my only option is to hold down the power button. Antifreeze is supposed to do exactly what i want, pausing all other applications and starting a task manager to kill the offender, but in my testing, it actually does neither.

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  • Debian x86_64 + Nginx + PHP5-FPM optimization

    - by user55859
    I used to have a VPS (512MB) from Linode and I was running nginx + php5-fpm (which comes with php5.3.3) on Debian Lenny (i686). The total memory usage was about 90-100MB. Now I have another VPS (different hosting company) and I also run nginx + php5-fpm on Debian Lenny (x86_64). The system is 64-bit, so the memory usage is higher now, about 210-230MB, which I think is too much. Here is my php5-fpm.conf: pm = dynamic pm.max_children = 5 pm.start_servers = 2 pm.min_spare_servers = 2 pm.max_spare_servers = 5 pm.max_requests = 300 That's what top command tells me: top - 15:36:58 up 3 days, 16:05, 1 user, load average: 0.00, 0.00, 0.00 Tasks: 209 total, 1 running, 208 sleeping, 0 stopped, 0 zombie Cpu(s): 0.0%us, 0.0%sy, 0.0%ni, 99.9%id, 0.1%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 532288k total, 469628k used, 62660k free, 28760k buffers Swap: 1048568k total, 408k used, 1048160k free, 210060k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 22806 www-data 20 0 178m 67m 31m S 1 13.1 0:05.02 php5-fpm 8980 mysql 20 0 241m 55m 7384 S 0 10.6 2:42.42 mysqld 22807 www-data 20 0 162m 43m 22m S 0 8.3 0:04.84 php5-fpm 22808 www-data 20 0 160m 41m 23m S 0 8.0 0:04.68 php5-fpm 25102 www-data 20 0 151m 30m 21m S 0 5.9 0:00.80 php5-fpm 10849 root 20 0 44100 8352 1808 S 0 1.6 0:03.16 munin-node 22805 root 20 0 145m 4712 1472 S 0 0.9 0:00.16 php5-fpm 21859 root 20 0 66168 3248 2540 S 1 0.6 0:00.02 sshd 21863 root 20 0 66028 3188 2548 S 0 0.6 0:00.06 sshd 3956 www-data 20 0 31756 3052 928 S 0 0.6 0:06.42 nginx 3954 www-data 20 0 31712 3036 928 S 0 0.6 0:06.74 nginx 3951 www-data 20 0 31712 3008 928 S 0 0.6 0:06.42 nginx 3957 www-data 20 0 31688 2992 928 S 0 0.6 0:06.56 nginx 3950 www-data 20 0 31676 2980 928 S 0 0.6 0:06.72 nginx 3955 www-data 20 0 31552 2896 928 S 0 0.5 0:06.56 nginx 3953 www-data 20 0 31552 2888 928 S 0 0.5 0:06.42 nginx 3952 www-data 20 0 31544 2880 928 S 0 0.5 0:06.60 nginx So, the question is there any way to use less memory? Btw, I have 16 cores and it would be nice to make use of them...

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  • Collect temperature and fan speed with munin from Windows 7 PC?

    - by nfm
    Hi, I'm quite fond of munin and using it also at home to monitor my PCs. What was super-duper easy under Linux is pretty much unsolvable for me under Windows: I'd like to monitor CPU and Motherboard temperatures as well as fan speed. On Linux I'm using lm-sensors and the plugin for munin was basically there. I access already some information from my Windows machine via SNMP (disk space, CPU usage, memory usage); the graphs are simple as is the information exposed via SNMP, but they do their job. But when it comes to temperature and fan speed I'm running against a wall. My research so far resulted in that Windows does not by default provide out of the box ability to retrieve temperature/fan speed data. Third party applications are necessary which have know-how how to communicate with the Motherboard chips. The best I cam up with is that SpeedFan exposes a shared memory interface and there exists a library which hooks into Windows SNMP facility and bridges over to SpeedFans shared memory interface; it's called SFSNMP (site currently down). Unfortunately the library doesn't work, there's a bug report at SpeedFan open about it, but it's currently not moving (although the SFSNMP author is active there) . So, unless that's going to work like anytime soon, are there any alternatives? I'm not found of buying any software to get that feature, given that I take it as granted that my system exposes me the information to properly monitor it, but anyway don't just not answer because of this.

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  • Poor performance on IIS7, only on Windows Server 2008, fine on Windows 7?

    - by user32005
    Hi, I'm new to IIS7 but have experience with other versions. I've been working on an application that works great in a dev environment (as always) but when I push it to a windows server 2008/IIS7 box performance takes a noticeable hit. The dev environment is Windows7/IIS7. The configuration in IIS is the same on the dev box as the server. I've tried all sorts of things to try and find a reason for this but I cant come to any conclusion. I've ruled out database problems on the live box as all data is cached after the first request. I've confirmed this to be true and made sure there is no additional database traffic. I've ruled out network issues with a combination of monitoring requests with fiddler and local debugging on the server. Whenever the code runs on the server there seems to be a performance issue. The server: Intel Core 2 Quad CPU Q6600 @ 2.40ghz with 2gb RAM. I know this is not fantastic but I was expecting it to at least perform as well as my dev environment (which is running much more on a lower spec). The CPU using peaks at under 60%, and memory usage is less than half of the available. I've enabled failed request tracing and most of the time is spent in a custom HttpModule, this module works to handle every request, I cant get any more detail as to what within the module may be causing the problem. Any ideas, I've been pulling my hair out for days now. Thanks

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  • Window Server 2003 Print spooler

    - by mikenardone
    Hello Everyone in ServerFault, I am new to this website. I have been coming here to fix my own problems. I believe everyone here on this website is great. I could not find this issue anywhere. I am sure that other people had this issue. I have IBM X3850 48GB ram 2 TB of hard drives, four NIC cards. 2 Xeon 1.7 CPU. I am running VMware ESX. I believe that was the paid version if not then it is ESXI. I have 7 Servers on this server. All Window server 2003. On one of the Servers I keep on getting CPU is at 100% . So when I go into task manager and look at the processes that is going on, it is my print spooler. I have 30 different HP laserjet printers and two copiers from HP. I believe it is an driver issue, but I can't figure with one is doing this. Is there any programs for window server 2003 that finds bad print drivers.

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  • Having munin server monitoring problem: Graphs not being generated.

    - by geerlingguy
    When I run munin-cron (munin-cron --debug), I get the following error: 2010/05/10 13:39:01 [WARNING] Call to accept timed out. Remaining workers: archstl.org;archstl.archstl.org 2010/05/10 13:39:01 [DEBUG] Active workers: 1/8 These errors simply keep repeating themselves until I quit munin-cron. I've followed the directions for debugging munin on the 'Debugging Munin plugins' wiki page, but I get the following results when going through their directions: After telnetting to localhost 4949, I can see a list of plugins, see a node at archstl.archstl.org, but can't fetch anything. The output is as follows: >fetch cpu . However, on the same machine (which is both the node and the master munin server), I can run munin-run cpu, and it prints the results correctly to the command line, like so: user.value 100829130 nice.value 3479880 system.value 13969362 idle.value 664312639 iowait.value 12180168 irq.value 14242 softirq.value 199526 steal.value 0 Looking at the wiki page mentioned above, it looks like it might be a plugin environment problem, but I can't figure out how to fix/change this... If the plugin does run with munin-run but not through telnet, you probably have a PATH problem. Tip: Set env.PATH for the plugin in the plugin's environment file.

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  • Windows 7 starts getting sluggish over a few days

    - by munrobasher
    Myself and the other developer are running Windows 7 Enterprise 64 bit with 8GB RAM on different Gigabyte motherboards with Quad core Intel CPUs. Most of the time, it runs like a dream. We use VMware workstation a lot (hence the 8GB) and that works well. Except... now and then, after the PCs have been on for a few days, the whole system starts getting really sluggish doing certain tasks. The other's developer's system is far worse than mine with it taking up to a minute to launch IE. Today, mine has gone sluggish but nowhere near as bad. For example, normally when I click on a new tab in IE, it's instant. Today, there's an obvious delay. Right-clicking in this window to trigger iSpell is normally instant, right now it takes about five seconds. I've got resource monitor open on my second monitor and when I did that right-click, there was no obvious peak in CPU, disk or memory. A reboot does fix it so it does sound like a resource issue but haven't a clue what might be to blame. The two computers have similarities (same spec) but also differences (like motherboard, RAM & CPU models). So I guess the question is, any pointers on diagnosing why a PC is sluggish? What could cause such a right-click slow down in IE for example? It sounds like such a simple operation. NOTE: whilst typing this message alone, it was fine performance wise. I can click around the page no problem but right-click still is noticeable slow. Will reboot over lunch... Cheers, Rob.

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  • Disk usage on IIS, PHP5, performance problems.

    - by Jacob84
    Hi everybody, I'm quite worried with a performance problem that I'm facing in one of our production servers. I'm working for a hosting company, so you can imagine how heterogeneous the applications runnning here are. All started with a call of a client complaining about the speed loading a Joomla. The setup is IIS6 (Windows 2003) with PHP5 and FAST CGI wich normally works pretty well. I've tested the loading time and indeed, he was right. 7 or 8 seconds to load, when usually this can be accomplished in 2. Seeing this results, I started to check first CPU and RAM. Everithing normal, 2GB of RAM free, 3%-8% of CPU activity. That's what I call a relaxed server ;). Unfortunately, digging a little deeper I've found the 'PhysicalDisk' counters quite high (above 10), specially the read queues. I've used Process Explorer to see wich of those processes has the higher deltas, but everything seemed normal. As the problem is specially related to PHP pages, I've checked specific IIS counters, as Actual connections, Number of CGI requeriments and Number of ISAPI requeriments. CGI -> 3 to 7 ISAPI -> 5 to 9 Connections-> 90 to 120 (wich appears at the top of the graph) More than a solution (I know this is hard to find), I would like to know if you have an specifical methodology to face this kind of problems. Thanks a lot, as always.

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  • "iostat" command different in two equal machines

    - by Oz.
    We have several machines on Amazon (ec2) of the type c1.xlarge with 8 cpus, running the Amazon AMI. Details on the machine: 7 GB of memory 20 EC2 Compute Units (8 virtual cores with 2.5 EC2 Compute Units each) 1690 GB of instance storage 64-bit platform I/O Performance: High API name: c1.xlarge One out of the several machines is showing a high load average, since we have run the last yum upgrade a couple of weeks a go. We did not yet update the other machines, and everything looks normal on them. The strange thing is that the top command not showing any hint for the cause of the load. CPUs are - 4.8%us, 1.1%sy, 0.0%ni, 94.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st. Mem is about 1.5GB free. Any idea what could it be, or where else can we check? iostat command on the proper machine: avg-cpu: %user %nice %system %iowait %steal %idle 8.97 0.03 4.46 0.19 0.14 86.23 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn xvdap1 1.60 0.69 55.38 587620 47254184 xvdfp2 2.64 1.10 61.04 934786 52091056 xvdfp4 0.86 0.19 41.72 163866 35601920 xvdfp1 4.37 36.59 73.89 31220810 63051504 xvdfp3 8.03 7.08 94.63 6045402 80749184 iostat command on problematic machine: avg-cpu: %user %nice %system %iowait %steal %idle 9.29 0.04 5.55 0.26 0.11 84.74 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn xvdap1 2.13 3.34 68.85 246244 5077888 xvdfp1 7.60 74.31 104.88 5480362 7734840 xvdfp3 13.22 73.67 125.00 5433386 9218600 xvdfp4 1.11 0.76 65.08 55762 4799248 xvdfp2 4.16 3.31 99.17 243818 7313264 Many thanks for the help.

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  • Windows 7 Busy Icon won't stop spinning

    - by Lynda
    In windows 7 you have the busy icon that is a little blue wheel spinning beside the cursor when it is doing something. It has started to spin for about a second every 3-5 seconds. There is noting running that I can tell on the computer to cause the busy icon. It gets very annoying and I am not sure what to do to get it to stop. Ideas? Running a CPU Usage Gadget says I have less than 5% of the CPU being use and I have over 6GB of RAM free. (I have 8GB total) I am running a 3.6 GHZ AMD FX 4100 processor. EDIT- What I am actually seeing is the working in background pointer (the pointer is still visible beside the busy icon). EDIT 2 - After realizing this happened with the printer installation I turned on the the printer and the busy icon stopped. The printer is setup wirelessly. How do I stop Windows from (I guess) checking for the printer? That is what I assume it is doing. I am using a HP Officejet 8600

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  • In APC+PHP, how much RAM is too much? Is it okay to set apc.shm_size to many GB?

    - by Jeremy Clarke
    On our server we have a LOT of RAM for our traffic levels (16GB). The HTTP processes regularly eat up all CPU and need to be restarted without even getting close to using swap memory, so I'm looking for ways to spend RAM to ease the load on Apache (and/or help the seperate MySQL server which may be breaking Apache). I have many WordPress installs on the HTTPD instance so APC sometimes uses as much as 900MB of ram (according to the apc.php charts). Just in case I have apc.shm_size set to 1600MB which is more than it needs but not more than I can spare. This means there is usually lots of extra RAM available to APC but also very little turnover and fragmentation is never more than 1%. Is this dangerous? Should I be slimming down APC to less than 1GB just on principle? Should I be expecting some turnover within APC in the name of bringing it's overall footprint down? Having so much memory devoted to APC means that in top/htop every single httpd process shows ~1.9GB in the VIRT memory column. Obviously this is shared memory and not used per-process, but could it be hurting our server? NOTE: The problem with the server remains unclear but the effect is that about 60 times a day all 8 CPU's fill up to 100% and everything stops working until Monit sees that Apache is broken and restarts it (Monin also saves the MySQL server). I'm not sure if APC is even part of the problem but I'm trying to optimize everything just in case.

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  • "What happens?" server performance monitor

    - by AlexAtNet
    Hello! After reviewing some thread about server monitoring software I end up with a simple question: Which of the server monitoring tools should I use for automatic detection of "abnormal" situations with recommendations on how to fix them? I look for software that checks the system performance after installation and calculate some average load values (memory, CPU, etc). And when something happens (CPU load is increased to 20%) then it tries to detect a reason for this. If it is apache, it should check for access logs. If mysql, it should check mysql logs and tell me what happens. It this is because some user decodes a lot of images, I'd like to know which command is executed, when and user name. The same for disk usage, memory, number of processes, threads and so on. Ideally, this software should periodically checks the system and report problems: errors in PHP error log, outdated packages, security vulnerabilities. In other word I'm looking a software that will keep my simple Debian/Apache/PHP/MySQL server without forcing me to monitor the charts every day. I hope that such program exists. Thanks, Alex

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  • Wireless card overheating?

    - by Sidney
    Ok, so I've had my laptop for several years (I wanna say 4, but possibly more), it's a Toshiba Satellite. I'm running Linux mint 15, and am having a strange new issue, after several hours of running my wireless stops. It can SEE wireless networks, but refuses to connect to any of them. (On a sidenote, connecting to a router with a cable at this point works fine) The fact that it can SEE the networks make me think the card is in good condition, and it's software related The fact that it works for several hours before booting me makes me think perhaps the transmitter is getting too hot. I don't use my laptop in dusty environments, and keep it on an elevated surface (alternatively, I actively try not to let it sit on soft surfaces where the vents get covered). I spray out the cpu fan about once a year with compressed air about once a year, so I really don't think the insides should be too dirty. Finally, unfortunately, sensors only gives me CPU temps, but they run about 40-50 degrees C, which from my understanding is perfectly normal for an I3. Does anyone have any suggestions on what I can do to determine the root cause of this?

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  • Ubuntu 12.10 64bit host reboots when trying to install any guest system using VirtualBox

    - by gts123
    I am having a really nasty problem with VirtualBox as everytime I try to install any guest OS(using ISO file as CD for installation media), the installation starts normally but as soon as it is about to start either installing to virtual hard drive or loading(e.g. as LiveFS) it causes the host system to reboot abruptly. Config is as below: Host system: Ubuntu 12.10 64bit - Intel® Core i7-2640M CPU @ 2.80GHz × 4 Virtualbox version: 4.1.18_Ubuntu r78361 Guest OS systems tried: 32bit version of FreeBSD 9, Debian 6, Tails 0.14 VM setup Tried to have the minimal setup necessary just in case it would avoid for each system to make sure I'd avoid conflicts, but to no avail. I've tried different values and combinations of the below but the problem still persists: Shared Clipboard: Disabled Show in fullscreen/seamless: Disabled Remember runtime changes: DIsabled Base Memory: 2048 MB Chipset: PIIX3 IO APIC: Disabled EFI: Disabled Absolute Pointing device: Disabled Processor(s): 1 CPU PAE/NX: Disabled VT-x/AMD-V: Disabled Video Memory: 12 MB 3d/2d acceleration: Disabled Storage IDE COntroller: PIIX3 (same as chipset instead of PIIX4) Use host I/O cache: No Audio: disabled Network adapter: NAT USB controller: disabled No shared folder Also another sideeffect of the reboot is that it appears that it does not log any information in the error log files; not making things any easier. Please help.

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