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A trace is a log of execution of a process or method.

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Per all documentation I can find for the MSDTC tracing feature, selecting "Trace All Transactions" should provide a trace file that can be formatted and read. I have tried for several days ...
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I am currently using Perfetto to analyze Android Binder transactions. I am querying the android_binder_txns table via the Trace Processor, but the aidl_name and interface_name columns are returning ...
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Problem I'm trying to set up Datadog APM tracing for my AWS Lambda functions (Node.js/TypeScript), but traces are not appearing in the Datadog APM UI. Custom metrics are being collected successfully, ...
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I’m trying to measure the exact time spent in each stage of my API request flow — starting from the browser, through Nginx, into Django, then the database, and back out through Django and Nginx to the ...
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Does Istio’s VirtualService routing and header manipulation apply to tracing traffic generated by istio-proxy itself? Here’s the situation: I have Istio configured to send spans to an external tracing ...
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I have complicated Python code which I wish to trace. I want to have a log file that will list all function calls in the order in which they are called, and for each call: the current call stack ...
Yair M's user avatar
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OTP 27 offers two tracing modules: trace and seq_trace. They both seem to do the same thing, except the other one is called &...
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I have a question when using opentelemetry and skywalking. In java project, use opentelemetry to generate trace and span infomation, then I want to collect these trace to skywalking aop to analysis ...
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I’m seeing confusing / broken graphs in the Langfuse dashboard for multi-agent traces and I’m not sure if it’s a Langfuse bug or something I’m doing wrong. What I did: I run a multi-agent system using ...
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I'm trying to solve a perf issue in my Android library. I use androidx.tracing to add trace events in system trace. My question is that should I use trace() or traceAsync() for a suspend function? <...
Jing-Wei Wu's user avatar
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I'm writing a Pingora proxy instance. It uses multiple async functions from a trait to indicate various stages. There is a common context that I can provide. I am trying to instrument the whole ...
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I'm working on a Flutter app and want to improve my error reporting, especially for async errors. I came across the stack_trace package and its Chain.capture method, which seems to provide much better ...
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I suspect this is not possible, but someone may have an interesting solution. I want to set the TraceId on a gRPC call. This will allow me continuity of trace ...
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I'm trying to build a basic WhatsApp bot using the @whiskeysockets/baileys library. I’ve set up the bot to connect using QR authentication, and it connects successfully. However, when I send or ...
Muhammad Ahmed's user avatar
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Using tracing_subscriber, How can I log span duration with Rust tracing? explains how to trace span durations. But I have a lot, and I only want to see slow ones. I have tried this but I'm not sure ...
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I'm building a custom Python debugger using sys.settrace() to inspect and log execution events. My script accepts a .py input ...
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I'm doing an in-depth CPU microarchitectural resource analysis. I want to know the requirements of my program on processor microarchitectural resources and compare the requirements of different ...
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I have a .NET console application where I want to add Open telemetry traces to be sent to Grafana. The app does not use Service Collection and DI. Instead we use the AppBuilder for all the application ...
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TL;DR: I implemented a clumsy way to track a search request through various points in the network. Is there a better way? I'm using the Elasticsearch SDK to perform searches. The search call traverses ...
chris's user avatar
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How to print every line of a php script as it's being executed? For example in Python you can do ...
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I'm using VizTracer to debug performance issues in my PyTorch data loading pipeline. Specifically, I'm using a DataLoader with ...
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I know how to use coverage module to get "human readable" coverage output (using popular third party coverage module). This can be used with pytest or unittest (with some differences in the ...
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(This post is based on a mailing list post I submitted yesterday) I'm writing a userspace application that interacts directly with perf_event_open() in order to trace control flow with Intel PT. ...
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I am attempting to capture events from sched/sched_block_reason on a Linux system, with the eventual goal of getting ...
Ken Lin's user avatar
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sys.settrace and Bdb.trace_dispatch can trace events. But the "line" event is ...
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I've implemented Otel for my python app sending telemetry to GCP backend. I'm seeing these trace spans for ...
Deepanshu Kalra's user avatar
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I have encountered two instances where it seems that R treats obj and print(obj) differently. I would like to know more about ...
Quasimodo's user avatar
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I have a question regarding ETW (Event Tracing for Windows) programming. My goal is simple: I want to use ETW base program to record every user-launched program on Windows. I have already implemented ...
Tyler's user avatar
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Is it possible for a process to probe dtrace/perf/etc USDTs for its own process (or even better, process group or uid) without needing elevated privileges or being able to trace processes with other ...
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I was looking for how to echo commands to the console as a Python script is executing. Google pointed me to the trace module, but what I found online shows that it ...
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Environment and Project Visual Studio 2022 Kernel Mode Driver (KMDF) Trace Lines TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_DRIVER, "%!FUNC! Entry"); TraceEvents(TRACE_LEVEL_ERROR, ...
Sarah Weinberger's user avatar
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So for example if I have this python code def adder(x,y): return x + y So I am tracing the values of variables for python source code and I want to run the sys....
Anuj Kumar's user avatar
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I want to analyze the impact of different microarchitecture designs on a certain workload, so I would like to collect traces on a machine running that workload and use those traces in the gem5 ...
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I'm working on a script that logs messages using rsyslog, and I want to calculate the total size of log entries (traces) generated per minute. My rsyslog configuration is set up to rotate logs based ...
pari's user avatar
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Initially I had such logging configuration in my spring boot 3.4 app: ...
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I have an application based on spring boot 3.4 I have application.properties with lines: ...
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My Linux system is WSL2 with kernel-5.15.133, and I wrote a eBPF codes to count calling of kmalloc in kernel with kprobe. The ...
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Based on official spring boot documentation Propagating Traces To automatically propagate traces over the network, use the auto-configured RestTemplateBuilder, RestClient.Builder or WebClient.Builder ...
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I have spring boot 3.4 application configured for metrics. I've added dependencies: ...
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I have a method annotated with @Observed annotation: ...
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I try to add observability support to my spring boot 3 application and I've found out that by default there only 10% of traces are collected. To collect all traces I've added following config ...
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I’m working on a project with the following goal: extract a self-contained set of Python modules and their corresponding test cases from a PyPI package, so that this extracted code (plus tests) can ...
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I read spring boot documentaion about observability and see the section about Baggage You can create baggage with the Tracer API: ...
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I am running Grafana Tempo with the example docker-compose local configuration from https://github.com/grafana/tempo/tree/main/example/docker-compose/local. To keep the traces clear, I disabled the ...
Sha's user avatar
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I am trying to show a scatter plot in plotly express (to my understanding PX is the way to go since I can tweak the traces for formatting efficiently) This is what I got from searching online ...
Jung Hun Kim's user avatar
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I would like to track the functions invoked by pytest test cases. I use this test file in xarray as an example. I use the following command to trace ...
Richard Hu's user avatar
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I'm using OpenTelemetry to track a Kafka message throughout its entire lifespan. Here's my current approach: On the sender side, I extract the Activity.Id (which contains both TraceId and SpanId), ...
Fernando Silva's user avatar
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We have a .NET Framework 4.8 WCF client that has tracing enabled. Problem is that the trace file is over 10GB and counting. I want to implement a circular trace file microsoft link. I took file ...
daily_driver's user avatar
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2 votes
1 answer
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I have a microbenchmark which I'm using to generate memory traffic. I've profiled the application and it seems to constantly hit in L1 cache. I have a Core i5-7260U. I want to understand the actual ...
jkang's user avatar
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When I create a chrome trace (in protobuf binary or json format) and open it in Perfetto, it shows thread activity as in the example below. I would like Perfetto to draw an arrow between rows ...
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