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  • Measuring device drivers CPU/IO utilization caused by my program

    - by Lior Kogan
    Sometimes code can utilize device drivers up to the point where the system is unresponsive. Lately I've optimized a WIN32/VC++ code which made the system almost unresponsive. The CPU usage, however, was very low. The reason was 1000's of creations and destruction of GDI objects (pens, brushes, etc.). Once I refactored the code to create all objects only once - the system became responsive again. This leads me to the question: Is there a way to measure CPU/IO usage of device drivers (GPU/disk/etc) for a given program / function / line of code?

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  • Why is Windows Task Scheduler trying to launch multiple instances?

    - by Paul H
    We have a number of Windows Scheduled tasks that run on one Server 2008 Webserver (not R2) which is in a cluster. We recently moved from an original webserver Cluster to a new webserver Cluser (Server 2008 - not R2). The new webserver (in the cluster) running the Windows Tasks is setup the same as on the original we believe. BUT we now find that on the new Windows Server the Windows Task Scheduler seems to want to instantly start each task three times. If we set the option to queue up a new task we get: Event ID 324 Task Scheduler queued instance "{9a1a8411-b042-45ff-8e6b-89874df230d7}" of task "\Client Reporting" and will launch it as soon as instance "{2bcc3df6-ea3b-4453-90c2-75b8b1946388}" completes. If we set the option to stop an existing task we get: Event ID 323 Task Scheduler stopped instance "{e685a910-b32b-414e-85fd-96bbe54314a2}" of task "\Client Reporting" in order to launch new instance "{4db66265-1f51-4ede-8535-ac7c3cb5c4c1}" . Ticked settings: Allow task to be run on demand. Run task as soon as possible after a scheduled start is missed. Stop the task if running for longer than 1 hour. If the running task does not end when requested force it to stop. Start the task only if the computer is on AC power. Stop the task if the computer switches to battery power. Selected option: If the task is already running - stop the existing instance. Note: We moved the tasks from one server to another in the cluster to see if it the Task Scheduler on the particular server we'd picked causing the problem. Same behaviour. Could it be something to do with the build of the new servers? We have very similar tasks set up on another server cluster that work OK without all this multiple starting. Comparing those tasks to the ones here - there does not seem to be anything obviously different in terms of settings available to us through the options within the Task Scheduler. Trigger: The task is scheduled to be triggered daily, once an hour - and to be stopped if it exceeds this time. Action: Runs a .bat file. What could be causing this/where we can look to see what logic is causing the tasks to start multiple times in this way?

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  • psybnc on nas: ncurses problem

    - by holms
    Trying to get compile psybnc on NAS. ipkg is default package manager in here. I've installed ncurses already, it's in /opt/lib (libncurses.so) [\w] # ls /opt/lib | grep ncurses libncurses.so libncurses.so.5 libncurses.so.5.7 libncursesw.so libncursesw.so.5 libncursesw.so.5.7 [\w] # file libncurses.so.5.7 libncurses.so.5.7: ELF 32-bit LSB shared object, ARM, version 1 (SYSV), dynamically linked, stripped I added this path to /etc/profile [\w] # echo $PATH /bin:/sbin:/usr/bin:/usr/sbin:/opt/bin:/opt/sbin:/opt/lib So trying to make menuconfig gives me this error [\w] # make menuconfig Initializing Menu-Configuration [*] Running Conversion Tool for older psyBNC Data. Using existent configuration File. [*] Running Autoconfig. System: Linux Socket Libs: Internal. Environment: Internal. Time-Headers: in time.h and sys/time.h Byte order: Big Endian. IPv6-Support: Yes, general support. But no interface configured. async-DNS-Support: Yes. SSL-Support: No openssl found. Get openssl at www.openssl.org Creating Makefile [*] Creating Menu, please wait. This needs the ncurses library. If it is not available, menuconf wont work. If you are using curses, use make menuconfig-curses instead. make: *** [menuconfig] Error 1 Same goes for make menuconfig-curses [\w] # make menuconfig-curses Initializing Menu-Configuration using Curses [*] Running Conversion Tool for older psyBNC Data. Using existent configuration File. [*] Running Autoconfig. System: Linux Socket Libs: Internal. Environment: Internal. Time-Headers: in time.h and sys/time.h Byte order: Big Endian. IPv6-Support: Yes, general support. But no interface configured. async-DNS-Support: Yes. SSL-Support: No openssl found. Get openssl at www.openssl.org Creating Makefile [*] Creating Menu, please wait. This needs the curses library. If it is not available, menuconf wont work. make: *** [menuconfig-curses] Error 1 Psybnc compiled ok, just wanna work with menuconfig instead of configuration file.

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  • Why is javac failing on @Override annotation

    - by skiphoppy
    Eclipse is adding @Override annotations when I implement methods of an interface. Eclipse seems to have no problem with this. And our automated build process from Cruise Control seems to have no problem with this. But when I build from the command-line, with ant running javac, I get this error: [javac] C:\path\project\src\com\us\MyClass.java:70: method does not override a method from its superclass [javac] @Override [javac] ^ [javac] 1 error Eclipse is running under Java 1.6. Cruise Control is running Java 1.5. My ant build fails regardless of which version of Java I use.

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  • DataGridView and Binding List Event.

    - by bearrito
    I have a datagridview with a datasource of type binding list. I understand that when the datagridview changed this will update the items in the binding list. I also know that if the objects in the bindinglist implement Inotifypropertychanged then if the obects are changed outside the grid then the objects will notify the bindlist which will then notify the datagrid My question is: If the datagrid view changing an object, I want the bindinglist or changed object to fire an event that allows me to pass the object to a WCF service that will persist the object on the data access layer side e.g. Service.Save(ChangedObject) How would I go about doing this?

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  • Is Android AVD's firewall somehow more restricted to real Android firewall?

    - by hhh
    I have a TCP server running in AVD and a TCP client running in AVD. AVD client dies because the connection refused so we are doubting some restricted firewall settings. I turned off the firewall in my Debian -laptop with this here but it did not fix the problem so some issue with Android -emulator, intro here. How can I make a TCP connection from one AVD to another AVD in the same laptop in Android? Grap the code & Minimal Working Example: You can find the sources here: import to Eclipse, set up two pieces of 2.3.3 AVDs, set up Test-running-configurations for server and client. Then "Run as Configuration" and you should see this bug. I don't have a physical Android -phone to test the code so I cannot comment whether it works with real Androids.

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  • Tomcat memory usage

    - by Adrian Mester
    I'm running tomcat on a ubuntu 10.4 VPS with 512MB of RAM (1024 burstable). I'm using it for development, so performance isn't an issue, but memory is. Tomcat is currently using about 250MB without any apps installed (I compared memory usage with tomcat stopped and running), and I also need to run lighttpd and mysql. Is there any way to get that number down? I don't need it to be able to handle a large number of requests at once.

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  • OpenVPN bridged not pinging beyond openvpn server on Ubuntu/Windows 2003

    - by ani
    I set up an OpenVPN server using Ubuntu and a windows server 2003 client to interconnect two networks between two different offices. They can now ping each other, but the rest of the network cannot be contacted by the windows client. Office 1 has internal network of: 192.168.0.0 255.255.240.0 Office 2 has internal network of: 192.168.16.0 255.255.255.0 And the configuration files are: Server.conf port 1194 --script-security 2 up "/etc/openvpn/up.sh br0" down "/etc/openvpn/down.sh br0" # TCP or UDP server? ;proto tcp proto udp dev tap0 ;dev tun ca ca.crt cert openvpn.crt key openvpn.key dh dh1024.pem ifconfig-pool-persist ipp.txt server-bridge 192.168.0.59 255.255.240.0 192.168.6.72 192.168.6.75 push "route 192.168.0.0 255.255.240.0" push "dhcp-option DNS 192.168.0.2" push "dhcp-option DOMAIN testeers.local" keepalive 10 120 tls-auth ta.key 0 # This file is secret comp-lzo user nobody group nogroup persist-key persist-tun log /var/log/openvpn/openvpn.log status /var/log/openvpn-status.log verb 3 Client Config file client dev tap ;dev tun --script-security 2 ;proto tcp proto udp remote 1xx.2xx.xxx.124 1194 resolv-retry infinite nobind persist-key persist-tun ca ca.crt cert admin-VAIO.crt key admin-VAIO.key ns-cert-type server tls-auth ta.key 1 comp-lzo verb 3 Ifconfig on the server now shows the following: br0 Link encap:Ethernet HWaddr 00:50:56:8b:1a:49 inet addr:192.168.0.59 Bcast:192.168.15.255 Mask:255.255.240.0 inet6 addr: fe80::250:56ff:fe8b:1a49/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1081860 errors:0 dropped:1358 overruns:0 frame:0 TX packets:242385 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:76600615 (76.6 MB) TX bytes:64474575 (64.4 MB) eth0 Link encap:Ethernet HWaddr 00:50:56:8b:1a:49 UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:1144125 errors:0 dropped:7172 overruns:0 frame:0 TX packets:252486 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:109893729 (109.8 MB) TX bytes:66372620 (66.3 MB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:67865 errors:0 dropped:0 overruns:0 frame:0 TX packets:67865 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:5183276 (5.1 MB) TX bytes:5183276 (5.1 MB) tap0 Link encap:Ethernet HWaddr 32:4f:42:11:b7:c5 inet6 addr: fe80::304f:42ff:fe11:b7c5/64 Scope:Link UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:3329 errors:0 dropped:0 overruns:0 frame:0 TX packets:215472 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:373205 (373.2 KB) TX bytes:17465832 (17.4 MB)

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  • Does bash have a hook that is run before executing a command?

    - by Gilles
    In bash, can I arrange for a function to be executed just before running a command? There is $PROMPT_COMMAND, which is executed before showing a prompt, i.e., just after running a command. Bash's $PROMPT_COMMAND is analogous to zsh's precmd function; so what I'm looking for is a bash equivalent to zsh's preexec. Example applications: set your terminal title to the command being executed; automatically add time before every command.

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  • Issues with proftpd on ubuntu server

    - by yummm
    I'm in the process of setting up a new server running Ubuntu 9.10 and I need to be able to access my web directory via FTP. I've installed proftpd, opened up port 21 and made sure it was up and running. Everything seems good, but when I try to connect via FTP from my personal computer to the server it times out each time. I've been stuck on this issue for a while now and I would appreciate any help. Any ideas???

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  • which collection should I use

    - by Masna
    Hello, I have a number of custom objects of type X. X has a number of parameters and must be unique in the collection. (I created my own equals method based on the custom parameters to examine this) In each object of type x, I have a list of objects y. I want to add/remove/modify easily an object y. For example: To write the add method, it would be something like add(objTypeX, objTypeY) I would check or the collections already has a objTypeX. If so: i would add the objTypeY to the already existing objTypeX else: i would create objTypeX and add objTypeY to this object. To modify an objTypeY, it would be something like(objTypeX, objTypeY, newobjTypeY) I would get objTypeX out of the collections and modify objTypeY to newobjTypeY Which collections should I use? I tried with hashset but i can get a specific object out of the list, without run down the list till I find that object. I develop this in vb.net 3.5

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  • Apache - slow response

    - by SJN
    Hi, I have a Ubuntu 64-bit 10.04 LTS box running Virtualmin and Apache2, fully updated. It's an ESX VM with 2GB RAM. There are currently two sites (one CMS and one Wordpress 3) running on the server and both have the same issue. The request takes about 5s and then the page loads. This behaving seems to be the case with all page loads. I'm looking for advice on where to start troubleshooting. Thanks, Sean

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  • WCF DataContract deserialization of complex types

    - by Meidan Alon
    Hi, I have a service that returns a collection of MyClass objects. If all of the MyClass instances have null in MyClass2Reference then everything works fine. Otherwise, I get a "Connection reset" error on the client side. What am I doing wrong? Nevrmind: was a problem with NHibernate lazy proxy objects. [DataContract] public MyClass { [DataMember] int ID; [DataMember] MyClass2 MyClass2Reference; } [DataContract] public MyClass2 { [DataMember] int ID; [DataMember] string Name; }

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  • Run WF 4.0 as a server-side component

    - by user184216
    Hi all, For a new project, we need to use WF 4.0 for deploying and running workflows. Instead of hosting workflows within the application itself, we decided to implement a server-side component that is in charge of running workflows. Before WF 4.0, one had explicit access to the the runtime engine (WorkflowRuntime), which provided some basic management functionalities, such as retrieving the workflows currently running etc ... As far as I could find out, WF 4.0 lacks this explicit access, as workflows are created via the WorkflowInstance class and no reference is immediately available to the WorkflowRuntime ... If I need these management functionalities on the server side, I'm a correct that I will need to implement these myself? Or did I miss out on something ... Thanks in advance for your answers!

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  • NSString: EOL and rangeOfString issues

    - by carloe
    Could someone please tell me if I am missing something here... I am trying to parse individual JSON objects out of a data stream. The data stream is buffered in a regular NSString, and the individual JSON objects are delineated by a EOL marker. if([dataBuffer rangeOfString:@"\n"].location != NSNotFound) { NSString *tmp = [dataBuffer stringByReplacingOccurrencesOfString:@"\n" withString:@"NEWLINE"]; NSLog(@"%@", tmp); } The code above outputs "...}NEWLINE{..." as expected. But if I change the @"\n" in the if-statement above to @"}\n", I get nothing.

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  • Qt - problem appending to QList of QList

    - by bullettime
    I'm trying to append items to a QList at runtime, but I'm running on a error message. Basically what I'm trying to do is to make a QList of QLists and add a few customClass objects to each of the inner lists. Here's my code: widget.h: class Widget : public QWidget { Q_OBJECT public: Widget(QWidget *parent = 0); ~Widget(); public slots: static QList<QList<customClass> > testlist(){ QList<QList<customClass> > mylist; for(int w=0 ; w<5 ; w++){ mylist.append(QList<customClass>()); } for(int z=0 ; z<mylist.size() ; z++){ for(int x=0 ; x<10 ; x++){ customClass co = customClass(); mylist.at(z).append(co); } } return mylist; } }; customclass.h: class customClass { public: customClass(){ this->varInt = 1; this->varQString = "hello world"; } int varInt; QString varQString; }; main.cpp: int main(int argc, char *argv[]) { QApplication a(argc, argv); Widget w; QList<QList<customClass> > list; list = w.testlist(); w.show(); return a.exec(); } But when I try to run the application, it gives off this error: error: passing `const QList<customClass>' as `this' argument of `void List<T>::append(const T&) [with T = customClass]' discards qualifiers I also tried inserting the objects using foreach: foreach(QList<customClass> list, mylist){ for(int x=0 ; x<10 ; x++){ list.append(customClass()); } } The error was gone, but the customClass objects weren't appended, I could verify that by using a debugging loop in main that showed the inner QLists sizes as zero. What am I doing wrong?

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  • how to avoid returning mocks from a mocked object list

    - by koen
    I'm trying out mock/responsibility driven design. I seem to have problems to avoid returning mocks from mocks in the case of finder objects. An example could be an object that checks whether the bills from last month are paid. It needs a service that retrieves a list of bills for that. So I need to mock that service that retrieves the bills. At the same time I need that mock to return mocked Bills (since I don't want my test to rely on the correctness bill implementation). Is my design flawed? Is there a better way to test this? Or is this the way it will need to be when using finder objects (the finding of the bills in this case)?

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  • Loading GUI on host machine through SSH with X11 forwarding

    - by cdated
    I've got applications on my host machine running fine by runnning: $ssh -X user@host Welcome to host $firefox Firefox proceeds to run in client display from the host machine. How do I get firefox to load on the host machine's display so I could remotely manage the host machine's running GUI applications? I need my application to load a GUI on a remote machine without walking to that machine.

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  • Doubt about django model API

    - by Clash
    Hello guys! So, here is what I want to do. I have a model Staff, that has a foreign key to the User model. I also have a model Match that has a foreign key to the User model. I want to select how much Matches every Staff has. I don't know how to do that, so far I only got it working for the User model. From Staff, it will not allow to annonate Match. This is what is working right now User.objects.annotate(ammount=Count("match")).filter(Q(ammount__gt=0)).order_by("ammount") And this is what I wanted to do Staff.objects.annotate(ammount=Count("match")).filter(Q(ammount__gt=0)).order_by("ammount") And by the way, is there any way to filter the matches? I want to filter the matches by a certain column. Thanks a lot in advance!

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  • Can I set up my Ubuntu machine as a proxy?

    - by George Edison
    I have 2 machines connected to a network that provides internet access. I would like one of the machines, which is running Ubuntu 10.04, to act as an internet proxy for the other machine, which is running Windows. How would I set this up? Is there a good Ubuntu proxy I can install?

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  • django: _init_ def work but does not update to class in django form

    - by tgngo
    Hi expert there, this is my form: class IPTrackerSearchForm(forms.Form): keyword = forms.CharField(max_length=100, widget=forms.TextInput(attrs={'size':'50'})) search_in = forms.ChoiceField(required=False, choices=ANY_CHOICE + MODULE_SEARCH_IN_CHOICES) product = forms.CharField(max_length=64,widget=forms.TextInput(attrs={'size':'50'})) family = forms.CharField(max_length=64,widget=forms.TextInput(attrs={'size':'50'})) temp_result = Merlin.objects.values('build').distinct() result = [(value['build'], value['build']) for value in temp_result] build = forms.ChoiceField(choices=ANY_CHOICE + result) circuit_name = forms.CharField(max_length=256,widget=forms.TextInput(attrs={'size':'50'})) parameterization = forms.CharField(max_length=1024,widget=forms.TextInput(attrs={'size':'50'})) metric = forms.CharField(max_length=64,widget=forms.TextInput(attrs={'size':'50'})) show_in_one_page = forms.BooleanField(required=False, label="Show filtered result in one page", widget=forms.CheckboxInput(attrs={'class':'checkbox'})) def __init__(self, *args, **kwargs): super(IPTrackerSearchForm, self).__init__(*args, **kwargs) temp_result = Merlin.objects.values('build').distinct() self.result = [(value['build'], value['build']) for value in temp_result] self.build = forms.ChoiceField(choices=ANY_CHOICE + self.result) print self.result With the purpose that, each time I refresh the webpage, when have new record to "build" column in database. It should update to the drop down box "build" here but It never update unless restart the server. I use print and see that ini detect new recrd but can notrefect to build in Class. Many thanks

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  • How to interrupt software raid resync?

    - by Adam5
    I want to interrupt a running resync operation on an ubuntu 10.04 software raid. (This is the regular scheduled compare resync) How to stop it while it is running? Another raid array is "resync pending", I want a complete stop of all resyncing. [Edit: "sudo kill -9 1010" doesn't do anything, 1010 is the PID of the md2_resync process] I would also like to know how I can control the intervals between resyncs and the remainig time till the next one.

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  • Execuitng script in threads

    - by Pedro Magalhaes
    Hi. I wanna make an app that executes remote scripts. I am going to design it like a Windows Service that listen on tcp/ip port. Every new request I will execute a python scripts. So I can handle any number of tcp/ip request at same time, so I will need to execute python script in separate threads. How can I do that? Is that simple? The script will share some objects, like Log files(text files) and other modules. In the log file example every script will write in the same file. So the app (windows service) will be responsible for do that. I need to make this objects thread safe, right?

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  • Compatiblity of 64 bit systems

    - by Bill
    I am running Windows Vista home premium 32bit on an Intel core2 duo E7300,which I believe is actually a processor capable of running 64bit.I also run Adobe photoshop CS5 which i believe could utilise the 64 bit processor and more ram.Could I change my operating system to 64bit and would I gain anything from doing so.

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  • Modifying records in my migration throws an authlogic error

    - by nfm
    I'm adding some columns to one of my database tables, and then populating those columns: def self.up add_column :contacts, :business_id, :integer add_column :contacts, :business_type, :string Contact.reset_column_information Contact.all.each do |contact| contact.update_attributes(:business_id => contact.client_id, :business_type => 'Client') end remove_column :contacts, :client_id end The line contact.update_attributes is causing the following Authlogic error: You must activate the Authlogic::Session::Base.controller with a controller object before creating objects I have no idea what is going on here - I'm not using a controller method to modify each row in the table. Nor am I creating new objects. The error doesn't occur if the contacts table is empty. I've had a google and it seems like this error can occur when you run your controller tests, and is fixed by adding before_filter :activate_authlogic to them, but this doesn't seem relevant in my case. Any ideas? I'm stumped.

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