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):

	channels:
	- conda-forge
	dependencies:
	- jupyterlab
	- jupyter_server_documents

	#!/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

	# SCM syntax highlighting & preventing 3-way merges
	pixi.lock merge=binary linguist-language=YAML linguist-generated=true

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

	<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);