Analysis of a Python performance issue
— Victor StinnerI am working on the CPython benchmark suite (performance) and I run the benchmark suite to upload results to speed.python.org. While analying results, I noticed a temporary peak on the call_method benchmark at October 19th:
The graphic shows the performance of the call_method microbenchmark between Feb 29, 2016 …
Intel CPUs (part 2): Turbo Boost, temperature, frequency and Pstate C0 bug
— Victor StinnerIntel CPUs (part 2): Turbo Boost, temperature, frequency and Pstate C0 bug
Intel CPUs: P-state, C-state, Turbo Boost, CPU frequency, etc.
— Victor StinnerIntel CPUs: Hyper-threading, Turbo Boost, CPU frequency, etc.
Visualize the system noise using perf and CPU isolation
— Victor StinnerI developed a new perf module designed to run stable benchmarks, give fine control on benchmark parameters and compute statistics on results. With such tool, it becomes simple to visualize sources of noise. The CPU isolation will be used to visualize the system noise. Running a benchmark on isolated CPUs …
My journey to stable benchmark, part 3 (average)
— Victor StinnerMy journey to stable benchmark, part 3 (average)
My journey to stable benchmark, part 2 (deadcode)
— Victor StinnerMy journey to stable benchmark, part 2 (deadcode)
My journey to stable benchmark, part 1 (system)
— Victor StinnerMy journey to stable benchmark, part 1
Status of Python 3 in OpenStack Mitaka
— Victor StinnerStatus of Python 3 in OpenStack Mitaka
Fast _PyAccu, _PyUnicodeWriter and_PyBytesWriter APIs to produce strings in CPython
— Victor Stinner_PyBytesWriter API
My contributions to CPython during 2015 Q4
— Victor StinnerMy contributions to CPython during 2015 Q4