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  • wanting a good memory + disk caching solution

    - by brofield
    I'm currently storing generated HTML pages in a memcached in-memory cache. This works great, however I am wanting to increase the storage capacity of the cache beyond available memory. What I would really like is: memcached semantics (i.e. not reliable, just a cache) memcached api preferred (but not required) large in-memory first level cache (MRU) huge on-disk second level cache (main) evicted from on-disk cache at maximum storage using LRU or LFU proven implementation In searching for a solution I've found the following solutions but they all miss my marks in some way. Does anyone know of either: other options that I haven't considered a way to make memcachedb do evictions Already considered are: memcachedb best fit but doesn't do evictions: explicitly "not a cache" can't see any way to do evictions (either manual or automatic) tugela cache abandoned, no support don't want to recommend it to customers nmdb doesn't use memcache api new and unproven don't want to recommend it to customers

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  • formation an external hard disk

    - by Alex
    I am trying to format an external hard disk to FAT32 (i need it to wrok with some hardware that expects it to be in fat32). When i am trying to format it vie windows the only option I'm getting is to format it to NTFS. Another strange thing is that when i am trying to format one of my own partitions (on the hard disk that is running the OS) i can do it only in NTFS while another partition my OS can format in both NTFS and FAT32. What can cause such a bihavior and how can I format the external hard dist to FAT32?

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  • Does GetVolumeNameForVolumeMountPoint() return the GUID of a volume?

    - by sxingfeng
    Does GetVolumeNameForVolumeMountPoint() return the GUID of a volume in c++? GetVolumeNameForVolumeMmountPoint() { LPCTSTR lpszvolumeMountPoint, LPTSTR lpszVolumeName, DWORDcchBufferLength, } I mean if I am using a removeable disk. will the lpszVolumeName remained the same on the same computer? Does it return a certain ID for a certain volume everytime I insert the disk on my computer' USBport. And Make sure different disk's volumes will get different result? Many Thanks!

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  • .NET remoting exception: Exception in the Socket#33711845::DoBind - Only one usage of each socket ad

    - by wollemi
    Hi All, I'm attempting to setup a simple remoting windows service and getting the following error when starting the service: "System.Net.Sockets Error: 0 : [4180] Exception in the Socket#33711845::DoBind - Only one usage of each socket address (protocol/network address/port) is normally permitted System.Net.Sockets Verbose: 0 : [4180] ExclusiveTcpListener#4032828::Start() System.Net.Sockets Verbose: 0 : [4180] Socket#33711845::Bind(0:9998#9998) System.Net.Sockets Error: 0 : [4180] Exception in the Socket#33711845::DoBind - Only one usage of each socket address (protocol/network address/port) is normally permitted ". In the windows service application I have the following code in the "OnStart" method - the error occurs when registering the Channel - ChannelServices.RegisterChannel(tcpPipe, true); As far as I can tell there are no other processes using port 9998 ... Your help to resolve this is most appreciated! protected override void OnStart(string[] args) { int portNumber = int.Parse(ConfigurationManager.AppSettings["endPointTCPPort"]); TcpChannel tcpPipe = new TcpChannel(portNumber); ChannelServices.RegisterChannel(tcpPipe, true); Type serviceType = Type.GetType("TractionGatewayService.TractionGateway"); try { RemotingConfiguration.RegisterWellKnownServiceType(serviceType, "updateCustomerDetails", WellKnownObjectMode.SingleCall); } catch (RemotingException e) { EventLog.WriteEntry("unable to establish listening port because " + e.message; ChannelServices.UnregisterChannel(tcpPipe); } w

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  • OutOfMemoryException, large Private Data

    - by Captain Comic
    Hello, In previous series: http://stackoverflow.com/questions/2543648/outofmemoryexception-stack-size-is-huge-large-number-of-threads I have a .net windows service that consumes a lot of memory. The GC heap is not big. Also the stack size is not big. What is big is something called a private data. Also I can see in task manager that my application consumes a lot something that taskmanager calls a handle. My application consumes 2326 handles. I believe that these handles are some windows handles that occupy private data. I can see that this private data is occupied by blocks marked as Thread Environment Block. What is that? Screenshot of my application memory usage by VMMap Screenshot of my application memory usage by Task Manager UPDATE I run ProcessExplorer. I have two instances of my service running at the moment. I can see that they consume a lot of virtual memory for Gen2 GC. This look suspicios. Also total reserved for GC Heap size is the same for two processes.

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  • SQLDeveloper using over 100MB of PGA

    - by Leigh Riffel
    Perhaps this is normal, but in my Oracle 11g database I am seeing programmers using Oracle's SQL Developer regularly consume more than 100MB of combined UGA and PGA memory. I'd like to know if this is normal and what can be done about it. Our database is on the 32 bit version of Windows 2008, so memory limitations are becoming an increasing concern. I am using the following query to show the memory usage: SELECT e.SID, e.username, e.status, b.PGA_MEMORY FROM v$session e LEFT JOIN (select y.SID, y.value pga, TO_CHAR(ROUND(y.value/1024/1024),99999999) || ' MB' PGA_MEMORY from v$sesstat y, v$statname z where y.STATISTIC# = z.STATISTIC# and NAME = 'session pga memory') b ON e.sid=b.sid WHERE (PGA)/1024/1024 > 20 ORDER BY 4 DESC; It seems that the resource usage goes up any time a table is opened in SQLDeveloper, but even when it is closed the memory does not go away. The problem is worse if the table is sorted while it was open as that seems to use even more memory. I understand how this would use memory while it is sorting, and perhaps even while it is still open, but to use memory after it is closed seems wrong to me. Can anyone confirm this? Update: I discovered that my numbers were off due to not understanding that the UGA is stored in the PGA under dedicated server mode. This makes the numbers lower than they were, but the problem still remains that SQL Developer seems to use excessive PGA.

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  • Treetop basic parsing and regular expression usage

    - by ucint
    I'm developing a script using the ruby Treetop library and having issues working with its syntax for regex's. First off, many regular expressions that work in other settings dont work the same in treetop. This is my grammar: (myline.treetop) grammar MyLine rule line string whitespace condition end rule string [\S]* end rule whitespace [\s]* end rule condition "new" / "old" / "used" end end This is my usage: (usage.rb) require 'rubygems' require 'treetop' require 'polyglot' require 'myline' parser = MyLineParser.new p parser.parse("randomstring new") This should find the word new for sure and it does! Now I wont to extend it so that it can find new if the input string becomes "randomstring anotherstring new yetanother andanother" and possibly have any number of strings followed by whitespace (tab included) before and after the regex for rule condition. In other words, if I pass it any sentence with the word "new" etc in it, it should be able to match it. So let's say I change my grammar to: rule line string whitespace condition whitespace string end Then, it should be able to find a match for: p parser.parse("randomstring new anotherstring") So, what do I have to do to allow the string whitespace to be repeated before and after condition? If I try to write this: rule line (string whitespace)* condition (whitespace string)* end , it goes in an infinite loop. If i replace the above () with [], it returns nil In general, regex's return a match when i use the above, but treetop regex's dont. Does anyone have any tips/points on how to go about this? Plus, since there isn't much documentation for treetop and the examples are either too trivial or too complex, is there anyone who knows a more thorough documentation/guide for treetop?

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  • Combining cache methods - memcache/disk based

    - by Industrial
    Hi! Here's the deal. We would have taken the complete static html road to solve performance issues, but since the site will be partially dynamic, this won't work out for us. What we have thought of instead is using memcache + eAccelerator to speed up PHP and take care of caching for the most used data. Here's our two approaches that we have thought of right now: Using memcache on all<< major queries and leaving it alone to do what it does best. Usinc memcache for most commonly retrieved data, and combining with a standard harddrive-stored cache for further usage. The major advantage of only using memcache is of course the performance, but as users increases, the memory usage gets heavy. Combining the two sounds like a more natural approach to us, even though the theoretical compromize in performance. Memcached appears to have some replication features available as well, which may come handy when it's time to increase the nodes. What approach should we use? - Is it stupid to compromize and combine the two methods? Should we insted be focusing on utilizing memcache and instead focusing on upgrading the memory as the load increases with the number of users? Thanks a lot!

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  • SQLDeveloper using over 100MB of PGA+UGA

    - by Leigh Riffel
    Perhaps this is normal, but in my Oracle 11g database I am seeing programmers using Oracle's SQL Developer regularly consume more than 100MB of combined UGA and PGA memory. I'd like to know if this is normal and what can be done about it. Our database is on the 32 bit version of Windows 2008, so memory limitations are becoming an increasing concern. I am using the following query to show the memory usage: SELECT e.SID, e.username, e.status, b.PGA_MEMORY FROM v$session e LEFT JOIN (select y.SID, y.value pga, TO_CHAR(ROUND(y.value/1024/1024),99999999) || ' MB' PGA_MEMORY from v$sesstat y, v$statname z where y.STATISTIC# = z.STATISTIC# and NAME = 'session pga memory') b ON e.sid=b.sid WHERE (PGA)/1024/1024 > 20 ORDER BY 4 DESC; It seems that the resource usage goes up any time a table is opened in SQLDeveloper, but even when it is closed the memory does not go away. The problem is worse if the table is sorted while it was open as that seems to use even more memory. I understand how this would use memory while it is sorting, and perhaps even while it is still open, but to use memory after it is closed seems wrong to me. Can anyone confirm this? Update: I discovered that my numbers were off due to not understanding that the UGA is stored in the PGA under dedicated server mode. This makes the numbers lower than they were, but the problem still remains that SQL Developer seems to use excessive PGA.

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  • PHP5 getrusage() returning incorrect information?

    - by Andrew
    I'm trying to determine CPU usage of my PHP scripts. I just found this article which details how to find system and user CPU usage time (Section 4). However, when I tried out the examples, I received completely different results. The first example: sleep(3); $data = getrusage(); echo "User time: ". ($data['ru_utime.tv_sec'] + $data['ru_utime.tv_usec'] / 1000000); echo "System time: ". ($data['ru_stime.tv_sec'] + $data['ru_stime.tv_usec'] / 1000000); Results in: User time: 29.53 System time: 2.71 Example 2: for($i=0;$i<10000000;$i++) { } // Same echo statements Results: User time: 16.69 System time: 2.1 Example 3: $start = microtime(true); while(microtime(true) - $start < 3) { } // Same echo statements Results: User time: 34.94 System time: 3.14 Obviously, none of the information is correct except maybe the system time in the third example. So what am I doing wrong? I'd really like to be able to use this information, but it needs to be reliable. I'm using Ubuntu Server 8.04 LTS (32-bit) and this is the output of php -v: PHP 5.2.4-2ubuntu5.10 with Suhosin-Patch 0.9.6.2 (cli) (built: Jan 6 2010 22:01:14) Copyright (c) 1997-2007 The PHP Group Zend Engine v2.2.0, Copyright (c) 1998-2007 Zend Technologies

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  • Cannot reactivate RAID-5 volume: The size of the plex member is invalid

    - by Ian Boyd
    We had a 3-drive Windows Server 2008 R2 RAID-5 fail (operating in redundancy mode): WDC 1 TB WDC 1 TB WDC 1 TB We removed the failed hard drive, and put a WDC 1 TB drive (that we had standing by) into the machine. When launched, Disk Manager, asked permission to "initialize" the disk as either: Master Boot Record (MBR) Guid Partition Table (GPT) We initialized the disk as GPT, converted it to dynamic, and tried to use the Repair Volume command - except it was greyed out. (which is a terrifying thing on a failed production server hosting 3 virtual servers) i tried from the diskpart command line tool. First we look for our RAID-5 volume that is in Failed Rd mode: DISKPART> list volume Volume ### Ltr Label Fs Type Size Status Info ---------- --- ----------- ----- ---------- ------- --------- -------- Volume 0 E VMs (Raid5) NTFS RAID-5 1863 GB Failed Rd Volume 1 D DVD-ROM 0 B No Media Volume 2 System Rese NTFS Partition 100 MB Healthy System Volume 3 C NTFS Partition 1862 GB Healthy Boot There, Volume 0. Make that our active context: DISKPART> select volume 0 Volume 0 is the selected volume. Now we need to find the disk we will be repairing the volume with: DISKPART> list disk Disk ### Status Size Free Dyn Gpt -------- ------------- ------- ------- --- --- Disk 0 Online 931 GB 0 B * Disk 1 Online 931 GB 931 GB * Disk 2 Online 1863 GB 0 B Disk 3 Online 931 GB 0 B * Disk M0 Missing 0 B 0 B * The disk with 931 GB free, Disk 1. Now we just need to repair the volume: DISKPART> repair disk=1 Virtual Disk Service error: The size of the plex member is invalid.

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  • Firefox addon (for firefox 3.5) to monitor web usage

    - by 2meaning
    I am looking for a firefox addon that would tell me where I have spent how much time browsing. I came across quite a few addons but they are either not supported in 3.5 or they are no longer supported or cannot be installed. I work on ubuntu linux (9.04) and Shiretoko (Firefox 3.5). I need a solution for this environment. I need stats like Website Time spent (hh:mm) % (day) % (week) %(month) www.stackoverflow.com 20:00 90 xx yy www.google.com 1:35 x www.theserverside.com 80:23 x www.facebook.com 200:30 x

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  • virsh vcpu_period and vcpu_quota

    - by Programster
    I have been looking into ways to divide my CPU amongst KVM guests other than by just setting vCPU access limits. I understand the concept of cpu_shares which can be set/displayed with virsh schedinfo, but I also found vcpu_period and vcpu_quota listed with this command as shown below: Looking at the man page, I know what the acceptable input values are but could somebody please explain in simple terms what these two parameters actually do?

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  • apache eat up too many ram per child

    - by mrc4r7m4n
    Hello to everyone. I've got fallowing problem: Apache eat to many ram per child. The fallowing comments shows: cat /etc/redhat-release -- Fedora release 8 (Werewolf) free -m: total used free shared buffers cached Mem: 3566 3136 429 0 339 1907 -/+ buffers/cache: 889 2676 Swap: 4322 0 4322 I know that you will say that there is nothing to worry about because swap is not use, but i think it's not use for now. 3.httpd -v: Server version: Apache/2.2.14 (Unix) 4.httpd -l: Compiled in modules: core.c mod_authn_file.c mod_authn_default.c mod_authz_host.c mod_authz_groupfile.c mod_authz_user.c mod_authz_default.c mod_auth_basic.c mod_include.c mod_filter.c mod_log_config.c mod_env.c mod_setenvif.c mod_version.c mod_ssl.c prefork.c http_core.c mod_mime.c mod_status.c mod_autoindex.c mod_asis.c mod_cgi.c mod_negotiation.c mod_dir.c mod_actions.c mod_userdir.c mod_alias.c mod_rewrite.c mod_so.c 5.List of loaded dynamic modules: LoadModule authz_host_module modules/mod_authz_host.so LoadModule include_module modules/mod_include.so LoadModule log_config_module modules/mod_log_config.so LoadModule setenvif_module modules/mod_setenvif.so LoadModule mime_module modules/mod_mime.so LoadModule autoindex_module modules/mod_autoindex.so LoadModule vhost_alias_module modules/mod_vhost_alias.so LoadModule negotiation_module modules/mod_negotiation.so LoadModule dir_module modules/mod_dir.so LoadModule alias_module modules/mod_alias.so LoadModule rewrite_module modules/mod_rewrite.so LoadModule proxy_module modules/mod_proxy.so LoadModule cgi_module modules/mod_cgi.so 6.My prefrok directive <IfModule prefork.c> StartServers 8 MinSpareServers 5 MaxSpareServers 25 ServerLimit 80 MaxClients 80 MaxRequestsPerChild 4000 </IfModule> KeepAliveTimeout 6 MaxKeepAliveRequests 100 KeepAlive On 7.top -u apache: ctrl+ M top - 09:19:42 up 2 days, 19 min, 2 users, load average: 0.85, 0.87, 0.80 Tasks: 113 total, 1 running, 112 sleeping, 0 stopped, 0 zombie Cpu(s): 7.3%us, 15.7%sy, 0.0%ni, 75.7%id, 0.0%wa, 0.7%hi, 0.7%si, 0.0%st Mem: 3652120k total, 3149964k used, 502156k free, 348048k buffers Swap: 4425896k total, 0k used, 4425896k free, 1944952k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 16956 apache 20 0 700m 135m 100m S 0.0 3.8 2:16.78 httpd 16953 apache 20 0 565m 130m 96m S 0.0 3.7 1:57.26 httpd 16957 apache 20 0 587m 129m 102m S 0.0 3.6 1:47.41 httpd 16955 apache 20 0 567m 126m 93m S 0.0 3.6 1:43.60 httpd 17494 apache 20 0 626m 125m 96m S 0.0 3.5 1:58.77 httpd 17515 apache 20 0 540m 120m 88m S 0.0 3.4 1:45.57 httpd 17516 apache 20 0 573m 120m 88m S 0.0 3.4 1:50.51 httpd 16954 apache 20 0 551m 120m 88m S 0.0 3.4 1:52.47 httpd 17493 apache 20 0 586m 120m 94m S 0.0 3.4 1:51.02 httpd 17279 apache 20 0 568m 117m 87m S 16.0 3.3 1:51.87 httpd 17302 apache 20 0 560m 116m 90m S 0.3 3.3 1:59.06 httpd 17495 apache 20 0 551m 116m 89m S 0.0 3.3 1:47.51 httpd 17277 apache 20 0 476m 114m 81m S 0.0 3.2 1:37.14 httpd 30097 apache 20 0 536m 113m 83m S 0.0 3.2 1:47.38 httpd 30112 apache 20 0 530m 112m 81m S 0.0 3.2 1:40.15 httpd 17513 apache 20 0 516m 112m 85m S 0.0 3.1 1:43.92 httpd 16958 apache 20 0 554m 111m 82m S 0.0 3.1 1:44.18 httpd 1617 apache 20 0 487m 111m 85m S 0.0 3.1 1:31.67 httpd 16952 apache 20 0 461m 107m 75m S 0.0 3.0 1:13.71 httpd 16951 apache 20 0 462m 103m 76m S 0.0 2.9 1:28.05 httpd 17278 apache 20 0 497m 103m 76m S 0.0 2.9 1:31.25 httpd 17403 apache 20 0 537m 102m 79m S 0.0 2.9 1:52.24 httpd 25081 apache 20 0 412m 101m 70m S 0.0 2.8 1:01.74 httpd I guess thats all information needed to help me solve this problem. I think the virt memory is to big, the same res. The consumption of ram is increasing all the time. Maybe it's memory leak because i see there is so many static modules compiled. Could someone help me with this issue? Thank you in advance.

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  • Upgrading a PERC h310 to a PERC H710 mini RAID controller on a Dell R620

    - by Gregg Leventhal
    I have an ESXi 5.0 Free license host using an internal Datastore (RAID 5, 5 Disk) that was configured with a Dell PERC h310 RAID controller. The disk performance was very poor, so I upgraded to the PERC H710 Mini. The IT Tech installed the controller and powered the host back on. I had to rescan the controller and the datastore appeared. Should any settings be changed in the RAID BIOS, or should the default settings be sufficient? Is they anything to be aware of when performing this type of upgrade in order to achieve the maximum performance?

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  • Ubuntu hibernate resume fails: "PM: Resume from disk failed"

    - by Neil
    I just upgraded to Ubuntu 10.4 from 9.10, and it's now hiding the hibernate and suspend options. How do I get them back? So the way you do this is make sure that your swap partition is in /etc/fstab and swap is enabled, and big enough. Look at /proc/swaps to see if anything is listed. Now I'm getting this error when I boot after suspending: init: ureadahead-other main process (705) terminated with status 4 Does anyone know how to fix this? I'm using Ubuntu with kernel 2.6.32-22-generic.

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  • php-cgi memory usage higher than php's memory limit

    - by Josh Nankin
    I'm running apache with a worker MPM and php with fastcgi. the following are my mpm limits: StartServers 5 MinSpareThreads 5 MaxSpareThreads 10 ThreadLimit 64 ThreadsPerChild 10 MaxClients 10 MaxRequestsPerChild 2000 I've also setup my php-cgi with the following: PHP_FCGI_CHILDREN=5 PHP_FCGI_MAX_REQUESTS=500 I'm noticing that my average php-cgi process is using around 200+mb of RAM, even as soon as they are started. However, my php memory_limit is only 128M. How is this possible, and what can I do to lower the php-cgi memory consumption?

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  • Properly escaping forward slash in bash script for usage with sed

    - by user331839
    I'm trying to determine the size of the files that would be newly copied when syncing two folders by running rsync in dry mode and then summing up the sizes of the files listed in the output of rsync. Currently I'm stuck at prefixing the files by their parent folder. I found out how to prefix lines using sed and how to escape using sed, but I'm having troubles combining those two. This is how far I got: source="/my/source/folder/" target="/my/target/folder/" escaped=`echo "$source" | sed -e 's/[\/&]/\\//g'` du `rsync -ahnv $source $target | tail -n +2 | head -n -3 | sed "s/^/$escaped/"` | awk '{i+=$1} END {print i}' This is the output I get from bash -x myscript.sh + source=/my/source/folder/ + target=/my/target/folder ++ echo /my/source/folder/ ++ sed -e 's/[\/&]/\//g' + escaped=/my/source/folder/ + awk '{i+=$1} END {print i}' ++ rsync -ahnv /my/source/folder/ /my/target/folder/ ++ sed 's/^//my/source/folder//' ++ head -n -3 ++ tail -n +2 sed: -e expression #1, char 8: unknown option to `s' + du 80268 Any ideas on how to properly escape would be highly appreciated.

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  • Why does my ReadyNas 4200 have a constant beep post disk failure

    - by swagner88
    Went to check on a high pitched constant beep coming from the server room and discovered that all the LED lights on the disks were black except one which had a constant green. Post a Re-boot nothing changed. Console indicated that that particular drive has failed. Pulled the drive out and BAM everything is fine. Except, the high pitched beep remains. Plan is currently to replace the drive with a new same size drive we happen to have purchased for expansion. My question is, what will this do? Will the NAS accept the new drive as a replacement for the failed one and decide to shut-up? The Manual for the device is almost to straight forward and says that I can just swap drives out as I need but I find that difficult to believe: http://www.readynas.com/download/documentation/HM/RN4200_HW_24May10.pdf

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  • Partition disk for dual boot Windows XP and Windows 7 (shared files)

    - by soupagain
    I wish to dual boot Windows XP and Windows 7. I wish to have my documents available from both OSes. Do I create a single partition and it just works? 2 partitions, one for each OS? 3 partitions, one for each OS and one for the "my documents"? [EDIT] I used 3 partitions, one for each partition and one for docs which is mapped as a separate drive. Works perfectly. The only think you need to do is hide the other OS partition, ie for Windows XP, hide the Windows 7 partition. You do this from partition manager.

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  • svchost consuming more than 50% CPU all the time in windows 7

    - by claws
    Hello, I'm using windows 7 ultimate. svchost containing DCOM Server Process Launcher Plug and Play Power services is consuming more than 50% of CPU for most of the time. I found this blog post: http://blog.hansmelis.be/2007/06/17/windows-vista-long-delay-when-switching-songs-in-media-player/ That process is associated with two services: DCOM Server Process Launcher and Plug and Play. For the Vulcans among us, all logic stops there for a second. What do those two services have to do with WMP? The answer is provided by Vista's new audio engine. The new engine supports several audio "enhancements". But for the enhancements to work, the engine needs to determine if your hardware is up to the task. And when does it check that? Each time a sound output device is accessed. That's pretty nice if you can do a hot swap of sound hardware, but I don't see me doing that anytime soon. Anyways, it does provide us with the link to the correct service because checking hardware is done by the "Plug and Play" service. One might think that deactivating each enhancement would solve the problem, but that's wishful thinking. The configuration of the enhancements is located in the properties of the sound hardware. When opening the tab, I found out that no enhancements were active. Hmmm... so why does it check the hardware? Well, it does that in case you actually enable an enhancement. To completely stop the hardware checking, you have to tick the box labelled Disable all enhancements. As soon as you do that, Vista finally understands you don't want to use them buts thats for vista. Is it the same case with windows 7 too? and I couldn't find any "Disable all enhancements" in my controlpanelsounds (mmsys.cpl). Where can I find this option in windows 7? How to solve this?

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  • Partition disk for dual boot Windows XP and Windows 7 (shared documents)

    - by soupagain
    I wish to dual boot Windows XP and Windows 7. I wish to have my documents available from both OSes. Do I create a single partition and it just works? 2 partitions, one for each OS? 3 partitions, one for each OS and one for the "my documents"? [EDIT] I used 3 partitions, one for each partition and one for docs which is mapped as a separate drive. Works perfectly. The only think you need to do is hide the other OS partition, ie for Windows XP, hide the Windows 7 partition. You do this from partition manager.

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  • What does %st mean in top?

    - by Ben
    Here is an example from my top: Cpu(s): 6.0%us, 3.0%sy, 0.0%ni, 78.7%id, 0.0%wa, 0.0%hi, 0.3%si, 12.0%st I am trying to figure out the significance of the %st field. I read that it means steal cpu and it represents time spent by the hypervisor, but I want to know what that actually means to me. Does it mean I may be on a busy physical server and someone else is using too much CPU on the server and they are taking from my VM? If I am using EBS could it be related to handling EBS I/O at the hypervisor level? Is it related to things running on my VM or is it completely unaffected by me?

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