Daily Dev Tips
Hello! Today we built a small tool. It is a tool for doing a quick little grep on your logs. Free, of course. chocoGrep – A Free Browser Tool for a Quick Little grep of Your LogschocoGrep runs entirely in your browser: paste or drop a log file and grep it
Daily Dev Tips
Hello! When designing parallel processing systems that use multiple GPUs, it is easy to design the whole system without giving much thought to the CPU. "The GPU is the star of a machine learning system, so surely the CPU doesn't need much attention?" Actually, that is
LLM
Hello! In this article, we take a detailed look at how image token counts are calculated when using Claude 4.5 Sonnet/Haiku and Claude 4.1 Opus via the API. How Image Token Counts Are Calculated Images sent to the Claude 4.5 API are counted as tokens, just
Python
Hello! When writing custom classes in Python, have you ever run into the baffling situation where "the object clearly exists, but an if statement judges it False" ? In this article, we explain the unexpected truthiness behavior that arises when you implement the __len__ method! A Bug We Actually
Daily Dev Tips
Hello! In this post, we look at how to resolve the "libcudnn.so.9: cannot open shared object file" error that can occur during GPU inference with ONNX Runtime. When running GPU inference with ONNX Runtime, you may run into a CUDA provider initialization error. This article explains
Daily Dev Tips
Hello! OpenCV is widely used in image processing and video analysis. When working with video processing in production, however, you may occasionally run into an error like the following. cv2.error: OpenCV(4.11.0) /io/opencv/modules/imgcodecs/src/loadsave.cpp:929: error: (-215:Assertion failed) !_img.empty() in
Daily Dev Tips
Hello! Today's topic is the "closure problem." Have you ever defined a function inside a loop in Python? If so, you may have run into some rather puzzling behavior. In this article, we explain the "closure problem" — something every Python programmer runs into at
LLM
Hello! OpenAI's vision-capable models (that is, LLMs that accept image input) use two different methods for converting images into tokens. The latest GPT-5 and GPT-4.1 families introduced a patch-based method that differs from the traditional tile-based approach. This change significantly improves the efficiency of image processing and
Daily Dev Tips
Hello! This is the Qualiteg Product Development team! This is the story of how simply converting a synchronous method into an asynchronous one (async) hit us with an unexpected memory leak*. It happened while we were developing a video processing system that uses deep learning models. We had a requirement
Daily Dev Tips
Hello! The other day, while building a Python application that uses dlib (running in a conda environment), I ran into the following error. ImportError: /home/mlu/anaconda3/envs/example_env/bin/../lib/libstdc++.so.6: version `GLIBCXX_3.4.32' not found (required by /home/mlu/anaconda3/envs/example_
NumPy/PyTorch
Hello! Today, let's take a look at analyzing and dealing with segmentation faults in services that combine virtualized environments with GPUs. What a Segmentation Fault Really Is A segmentation fault is an exception raised by the OS when a program attempts to access a protected region of memory.
Daily Dev Tips
Hello! Today's topic is the conda command, a tool many of us rely on every day. Here are some tips for shell scripts and batch tasks that enter a conda virtual environment, run some processing, and then return. In AI development, Anaconda and its core conda package manager
Daily Dev Tips
Hello! Today we are talking about Node.js, which we often use as the front-end server for AI systems. With the spread of AI models, we increasingly find ourselves handling very large data files. Model files for LLMs and training datasets can reach several gigabytes—sometimes tens or even hundreds
LLM
Hello! When you use Gemini 2.5 Pro and Gemini 2.5 Flash, accurately tracking token counts is critical for cost calculation and context window management. In this article, we take a detailed look at how tokens are calculated for multimodal content: images, video, and audio. Basic Concept: What Is
Daily Dev Tips
Hello! This time, we ran into a puzzling problem while using a conda environment on WSL from PyCharm: the package lists did not match even though it was supposedly the same environment. In this article, we look at the cause and how to fix it. The Situation Our development flow
IT & AI Technology
Maximum Supported Users Calculator Calculates the maximum number of users supported by a GPU conversion server that can process only one job at a time Processing time (t_p) min/job Time required for one conversion job Target system utilization (ρ) 0 to 1 Target utilization for stable operation (recommended: