diagnostics

问题 For the sake of making debugging easier and such, I would like to know all traits implemented for a type within a certain scope. Can I get rustc to provide me this information? If so, how? 回答1: Use rustdoc / cargo doc . rustdoc creates a section with all trait implementations for a given type. For example with Vec: If you would like to do this for your own crate, you might find --document-private-items to be useful. See also How to generate documentation for private items. 来源： https:/

问题 I am aware of the generation of the Performance Counters and Diagnosis in webrole and worker-role in Azure. My question is can I get the Performance Counter on a remote place or remote app, given the subscription ID and other certificates (3rd Party app to give performance Counter). Question in other words, Can I get the Performance Counter Data, the way I use Service Management API for any hosted service...? What are the pre-configurations required to be done in Server...? to get CPU data...

问题 I'm getting this warning (after "use diagnostics;"); Parsing of undecoded UTF-8 will give garbage when decoding entities at /usr/lib/perl5/HTML/PullParser.pm line 81. My program is like this: ... use diagnostics; use WWW::Mechanize; use WWW::Mechanize::Gzip; ... $m = WWW::Mechanize::GZip->new( agent => $self->{_agent}, timeout => $self->{_timeout}, ); if (!$m->get($url)) { die("Impossibile scaricare l'url [$url]"); } if (!$m->form_number(1)) { die("Impossibile trovare il form 1"); } <WARNING

问题 I'm trying to set up an application from a third party, which requires a supporting website hosted in my local IIS. I've created a website exactly as explained in their install guide, but am having some problems, and would like to see what the IIS log has to say. Embarrassingly enough, the problem is I can't find the log files! So my question is: Where does IIS7 store logs by default? 回答1: I think the default place for access logs is %SystemDrive%\inetpub\logs\LogFiles Otherwise, check under

问题 Copy elision is a neat optimization technique and in some cases relying on copy elision can actually be faster than passing around references "by hand". So, let's assume you have identified a critical code path where you rely on the fact that the copy elision is performed by your compiler for the code path for maximum performance. But now you are relying on a compiler optimization. Is there any (compiler specific, obviously) way to ensure that the copy elision is actually performed and have

问题 Periodically we get a hang on shut down of a Windows service in a production environment that we just cannot reproduce. It can be months before it happens again. I'm putting in some diagnostics to try and help with the issue, one thing I'm looking at is adding an event to the system thread pool for 60 seconds after we initiate shut down of the application. Our application should shutdown cleanly within 10 seconds maximium. In this event I would like to trace out the remaining running threads

问题 My code is failing with a ClassNotFoundException . I can see that the jar file containing the class is definitely on the classpath from the command prompt execution. Is there a way to dump the list of classes on the classpath from the JVM? (Ideally some Java code). (I don't want to see the classes in a directory, I want to see a list of what is loaded into the JVM). 回答1: That's actually not what you want to see if you're getting a CNFE , since it's not found. Plus not all available classes

问题 There are many tools out there, which diagnostics tools are good for diagnostic memory leak issues for node.js applications? 回答1: Yes, IDDE is a powerful tool not only for memory leak detection, but for a wide variety of problem determination of Node.js misbehaviors, including crashes and hangs. Here is the link for overview, installation, and what is new information: https://www.ibm.com/developerworks/java/jdk/tools/idde I would start with nodeoverview command. Note that every command starts

问题 Background: I am running a TCP server on one machine with multiple clients on separate machines connecting over TCP, and I am monitoring network traffic with Wireshark, as well as with logging from within my server application, and through the System.Diagnostics tracelistener on System.Net.Sockets in verbose mode. Problem: Prompted to examine my logs due to some unexpected disconnects, I see some very strange behavior. According to the server application logs, and the System.Diagnostic output

问题 All, just wondering if it's possible in .NET/C# to get a list of variables on the stack and their values? I am creating an exception handler for my app and beyond a standard stack trace I'd also like to see the names and values for any variables that are on the stack. Any idea if this can be done? 回答1: Yes, the StackFrame class can help you with that. Linkage Something along these lines var currentStackFrame = new StackFrame(1); var props = currentStackFrame.GetMethod().GetParameters(); 来源：