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Investigation finds G1GC card-marking barrier makes Arrays.fill 265x slower than ParallelGC

A JMH benchmark filling two reference arrays showed drastically different results depending on garbage collector: about 0.5ms on ParallelGC versus 139ms on G1GC, despite no garbage collection occurring during the measured operations. The author traces this gap through JIT compilation and JVM flags down to a specific machine instruction responsible for the slowdown.

JBL launches Cove series, its first Wi-Fi multiroom speaker lineup

JBL unveiled three new Wi-Fi speakers under the Cove name: the $230 Cove M1, the $400 portable Cove P1, and the $450 Dolby Atmos-equipped Cove X1. All three connect via the JBL One app for synced multiroom playback and can double as rear speakers for JBL's Bar Series MK2 soundbars, with availability starting September 13 in black and white.

Attackers exploit patched PaperCut flaws to steal data from print servers

Hackers are actively exploiting two recently disclosed PaperCut NG and MF vulnerabilities, CVE-2026-81578 and CVE-2026-82078, to bypass authentication and steal data from print management servers. PaperCut issued emergency fixes last week, but researchers at Defused say attackers are using the bypass to hijack the software's user-lookup function and dump database tables rather than pursue remote code execution as earlier reports suggested. Over 800 PaperCut servers remain exposed online according to Shadowserver, and PaperCut has not yet attributed the attacks or detailed post-compromise activity.

OpenClaw 2.0 adds team collaboration and stronger security for enterprise use

Creator Peter Steinberger and his team released OpenClaw 2.0, a major overhaul of the open-source AI agent harness that lets users direct autonomous AI workers through messaging apps. The update, officially v2026.8.1, adds a rebuilt browser workspace, shared cloud sessions for multiple users, and expanded security features like sandboxing, role-based permissions and audit controls. Steinberger said the team built the new version largely by using OpenClaw itself to develop it.

Pizza Restaurant's Family Restroom Featured in Restroom Archive Listing

A restroom archive entry documents the family restroom of a pizza restaurant, accessible through the bar area on the left side of the venue. The space is described as spacious, featuring subway-tiled lower walls, wood paneling above, and a basket-weave tile floor, with no decorative elements aside from graffiti tags covering the door and soap dispenser.

Story contest asks writers to imagine a world with a GPU for every person by 2040

A writing contest is inviting entries that envision a future where GPU compute has scaled enough that every person on Earth could have access to the equivalent of a high-end AI chip like the B300, running frontier language models around the clock. The prompt notes today's AI access is bottlenecked by scarce GPU supply, limiting who can use top-tier models like Fable or Sol.

Google Antigravity adds /boost command for multi-agent deep reasoning on coding tasks

Google has introduced a new slash command, /boost, in Antigravity 2.0 and the Antigravity CLI that triggers a multi-agent reasoning pipeline for difficult coding problems like race conditions, complex refactors, and subtle bugs. The feature works through a three-phase process where an orchestrator agent breaks down the problem and dispatches specialized subagents to isolated workstreams, then verifies results across multiple rounds. The command is restricted to paid plan subscribers.

Tailscale releases tailcat, a standalone netcat-like tool using its network layer without accounts or servers

Tailscale has launched tailcat, an open-source Go package and CLI tool that lets developers move data between two points using the company's underlying network technology—WireGuard encryption, NAT traversal, and DERP relay servers—without any of Tailscale's account system, control plane, or administrative layer. It functions like the classic netcat utility but routes traffic through Tailscale's magicsock networking stack, and can run entirely independent of Tailscale as a company if users host their own DERP relay server.

Open-source RotaryCell kit turns vintage rotary phones into LTE devices via ESP32-S3

A hobbyist project called RotaryCell adds internal electronics to an unmodified rotary telephone, letting it place calls over LTE using an ESP32-S3-based LilyGO board, a battery, and the AG1171 ringer chip, while keeping the original handset, dial, and hook intact. The current release is a documented, hand-wired working prototype on firmware v0.10.4, with new integrated PCBs already ordered from JLCPCB but not yet assembled or validated.

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