Hacker News: jhalstead

New comment by jhalstead in "FBI used iPhone notification data to retrieve deleted Signal messages"

jhalstead — Fri, 10 Apr 2026 12:33:27 +0000

Fwiw, in my Signal app on Android this setting is in

Settings > Notifications > Messages > Show

New comment by jhalstead in "FBI used iPhone notification data to retrieve deleted Signal messages"

jhalstead — Fri, 10 Apr 2026 12:30:56 +0000

On a Pixel, I can see some history by going to

Android > Settings > Notifications > Manage > Notification History

New comment by jhalstead in "Meta’s renewed commitment to jemalloc"

jhalstead — Tue, 17 Mar 2026 03:07:42 +0000

> I’m surprised (unless they replaced the core tcmalloc algorithm but kept the name).

Indeed, it's not the old gperftools version.

Blog: https://abseil.io/blog/20200212-tcmalloc

History / Diffs: https://google.github.io/tcmalloc/gperftools.html

Gemini 3.0 Pro helps solve longstanding mystery in the Nuremberg Chronicle

jhalstead — Sat, 03 Jan 2026 19:36:58 +0000

Article URL: https://siliconangle.com/2026/01/01/googles-gemini-3-0-pro-helps-solve-long-standing-mystery-nuremberg-chronicle/

Comments URL: https://news.ycombinator.com/item?id=46480634

Points: 3

# Comments: 2

New comment by jhalstead in "Can an email go 500 miles in 2025?"

jhalstead — Tue, 08 Jul 2025 14:17:17 +0000

Presumably this is the author given their UNC and SysAdmin background: https://www.linkedin.com/in/treyharris

I found it via a "trey harris sage.org" search on Google.

New comment by jhalstead in "Dead Stars Don’t Radiate"

jhalstead — Sat, 17 May 2025 19:55:34 +0000

Direct link to A_D_E_P_T's comment: https://news.ycombinator.com/item?id=43964524

New comment by jhalstead in "Shortest-possible walking tour to 81,998 bars in South Korea"

jhalstead — Thu, 24 Apr 2025 02:56:36 +0000

It seems like you're pretty close with that guess.

https://www.ibisworld.com/us/industry/ohio/bars-nightclubs/1... (2025) estimates there are about 3,000 "bars and nightclubs" in Ohio.

And https://vinepair.com/articles/map-states-with-most-bars/ (2022) estimates there are 1800 bars in Ohio, apparently placing it in the Top 10 of states with the most bars.

New comment by jhalstead in "Gemini Robotics brings AI into the physical world"

jhalstead — Wed, 12 Mar 2025 18:09:51 +0000

What are you referring to with this part?

> they have blogged about their cutting-edge protobuf tsunami capabilities.

Not sure if you recall the blog post url or title, but I'm curious to read more.

New comment by jhalstead in "Seconds Since the Epoch"

jhalstead — Thu, 26 Dec 2024 20:27:14 +0000

Their public NTP doc for the "leap smear" also includes some other leap smear proposals: https://developers.google.com/time/smear

New comment by jhalstead in "Facebook building subsea cable that will encompass the world"

jhalstead — Mon, 04 Nov 2024 21:06:20 +0000

You can see some of the cables in https://cloud.google.com/about/locations#network

New comment by jhalstead in "IrfanView"

jhalstead — Sat, 30 Mar 2024 21:16:59 +0000

Do you have a link for Ditto? Searching for "Ditto app" and "Ditto software" returns several possible results for me (e.g. clipboard, music app, managing "copy", content sharing).

New comment by jhalstead in "JPEG XL and the Pareto Front"

jhalstead — Fri, 01 Mar 2024 19:38:33 +0000

[0] for those interested in Highway.

It's also mentioned in [1], which starts off

> Today we're sharing open source code that can sort arrays of numbers about ten times as fast as the C++ std::sort, and outperforms state of the art architecture-specific algorithms, while being portable across all modern CPU architectures. Below we discuss how we achieved this.

[0] https://github.com/google/highway

[1] https://opensource.googleblog.com/2022/06/Vectorized%20and%2..., which has an associated paper at https://arxiv.org/pdf/2205.05982.pdf.

New comment by jhalstead in "Chandrayaan-3 Soft-landing [video]"

jhalstead — Wed, 23 Aug 2023 13:07:22 +0000

I'm not very familiar with this source [0], but it states "ESA was providing support to the Chandrayaan-3 mission from three of its ground stations located in Kourou (French Guiana), Goonhilly (United Kingdom), and New Norcia (Western Australia)." Although BIK doesn't obviously map to any of those.

[0] http://www.moneycontrol.com/news/india/chandrayaan-3-europea....

New comment by jhalstead in "CIQ, Oracle, SUSE Create Open Enterprise Linux Association"

jhalstead — Thu, 10 Aug 2023 16:57:24 +0000

No issues when I opened it on mobile Chrome.

Faster filesystem access with Directfs

jhalstead — Thu, 27 Jul 2023 23:41:03 +0000

Article URL: https://gvisor.dev/blog/2023/06/27/directfs/

Comments URL: https://news.ycombinator.com/item?id=36901543

Points: 169

# Comments: 56

New comment by jhalstead in "FreeBSD spends 7% of its boot time running a bubblesort on its SYSINITs"

jhalstead — Fri, 19 May 2023 16:37:35 +0000

Colin (and others?) have been working to reduce the boot time of FreeBSD for a while now. At this point shaving off a few milliseconds is probably a nice win for them.

https://twitter.com/cperciva/status/1659391725427720195?t=0y...

New comment by jhalstead in "All 1,400 Google Chrome CLI flags"

jhalstead — Thu, 22 Dec 2022 00:48:53 +0000

Also, https://abseil.io/docs/cpp/guides/flags

New comment by jhalstead in "Waymo begins driverless rides in San Francisco"

jhalstead — Wed, 30 Mar 2022 16:13:43 +0000

I believe OP is comparing the visualizations produced by the Auto Pilot system in their Tesla (jumpy) to Waymo's visualizations (stable and coherent).

CliqueMap: Productionizing an RMA-Based Distributed Caching System

jhalstead — Tue, 21 Sep 2021 19:18:16 +0000

Article URL: https://research.google/pubs/pub50590/

Comments URL: https://news.ycombinator.com/item?id=28608739

Points: 3

# Comments: 0

New comment by jhalstead in "Multigenerational LRU: more performant, versatile, straightforward than Linux's"

jhalstead — Sun, 14 Mar 2021 04:13:41 +0000

FWIW, the Use Cases section presents data about the impact in mobile and laptop environments:

On Android, our most advanced simulation that generates memory pressure from realistic user behavior shows 18% fewer low-memory kills, which in turn reduces cold starts by 16%.

...

On Chrome OS, our field telemetry reports 96% fewer low-memory tab discards and 59% fewer OOM kills from fully-utilized devices and no UX regressions from underutilized devices.