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Performance

Tag for content related to software performance.

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Don't Assume Your Cloud T4 Runs at Spec: Gemma 4 Decode Falls 7% as the Card Warms

Datasheets miss sustained thermal drift

Don't Assume Your Cloud T4 Runs at Spec: Gemma 4 Decode Falls 7% as the Card Warms

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Comments 5
11 min read
Docker Compose 5.6's jobs type only starts through docker compose run

Triggers cause config validation and up failures

Docker Compose 5.6's jobs type only starts through docker compose run

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Comments 4
6 min read
The Browser Already Has a Priority System. Your debounce(300) Does Not.

Distinguishes between slow rendering and rudeness

The Browser Already Has a Priority System. Your debounce(300) Does Not.

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Comments 14
8 min read
How long a serverless function stays warm on DigitalOcean

Tests container lifespan over idle time

How long a serverless function stays warm on DigitalOcean

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Comments 7
6 min read
PostgreSQL 19 beta's parallel autovacuum launches workers but leaves vacuum time unchanged

PostgreSQL 19 beta's parallel autovacuum launches workers but leaves vacuum time unchanged

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Comments 2
7 min read
Stop Using Default Node.js fetch() in Production Without These Two Fixes

Comments reveal hidden socket retention issues

Stop Using Default Node.js fetch() in Production Without These Two Fixes

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Comments 13
6 min read
Node.js 26's default Temporal API fixes a one-hour DST drift that Date still has

Benchmarking reveals a 19x performance cost

Node.js 26's default Temporal API fixes a one-hour DST drift that Date still has

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Comments 24
7 min read
Django 6.1's PBKDF2 default change rewrites existing password hashes on next login

Exposes a bug that downgrades hardened hashes

Django 6.1's PBKDF2 default change rewrites existing password hashes on next login

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Comments 5
7 min read
Changing def to async def let one blocking call freeze an entire FastAPI app

Changing def to async def let one blocking call freeze an entire FastAPI app

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Comments 3
8 min read
Python 3.14's concurrent.interpreters module turns a 3.6-second GIL bottleneck into 0.9 seconds

Startup costs and forkserver surprises add nuance

Python 3.14's concurrent.interpreters module turns a 3.6-second GIL bottleneck into 0.9 seconds

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Comments 4
8 min read
Valkey 9.2's new rdbcompression lz4 setting cuts a 1M-row RDB from 178MB to 35MB

Valkey 9.2's new rdbcompression lz4 setting cuts a 1M-row RDB from 178MB to 35MB

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Comments 2
6 min read
Git 2.56's last-modified command is fast on one directory and slow on scattered files

Benchmarks reveal a hidden pathspec ordering bug

Git 2.56's last-modified command is fast on one directory and slow on scattered files

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Comments 7
6 min read
SQLite 3.54's diskused command needs a build flag sqlite3_analyzer never required

SQLite 3.54's diskused command needs a build flag sqlite3_analyzer never required

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Comments 2
6 min read
Every keyboard is a mechanical keyboard with Klicky

Every keyboard is a mechanical keyboard with Klicky

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Comments 1
6 min read
Your Website Has a Design System. Does Your Marketing Team Have a Content System?

Visual consistency doesn't solve messaging chaos

Your Website Has a Design System. Does Your Marketing Team Have a Content System?

63
Comments 5
11 min read
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