Min RK minrk

mamba 2.6 performance test

this is a replication of the repo2docker tests/conda/downgrade test (environment files are unmodified), which is dramatically slower after upgrading mamba to 2.6.

Two stages:

install initial frozen environment (@explicit file, no solve):

	#!/usr/bin/env python3
	# (c) 2026 Min RK
	# License: BSD-3-Clause
	# /// script
	# requires-python = ">=3.11"
	# dependencies = [
	# "click",
	# "rich",
	# ]
	# ///

	channels:
	- conda-forge
	dependencies:
	- python=3.12

	apiVersion: batch/v1
	kind: Job
	metadata:
	name: s3-clone
	spec:
	parallelism: 1
	template:
	metadata:
	labels:
	app: cloner

	apiVersion: batch/v1
	kind: Job
	metadata:
	name: s3-delete
	spec:
	parallelism: 1
	template:
	metadata:
	labels:
	app: deleter

	<html>
	<head>
	<title>test</title>
	</head>
	<body>
	<div id="out"></div>
	<script type="text/javascript">
	function onMessage(evt) {
	const msg = JSON.parse(evt.data);
	console.log(msg);

	FROM python:3.13-slim
	RUN pip install boto3
	COPY s3rmrf.py /usr/local/bin/s3rmrf.py

	import json
	import secrets
	import sys
	import time
	import uuid
	from copy import deepcopy
	from dataclasses import asdict, dataclass
	from functools import partial, wraps
	from pathlib import Path
	from subprocess import check_output