Hacker News: bobmcnamara

New comment by bobmcnamara in "Diskless Linux boot using ZFS, iSCSI and PXE"

bobmcnamara — Thu, 07 May 2026 11:35:25 +0000

Dunno about performance vs NFS, but I've stuffed an unaware OS onto ZVOL-over-iSCSI using a NIC with option ROM.

New comment by bobmcnamara in "Infrasound waves stop kitchen fires, but can they replace sprinklers?"

bobmcnamara — Sat, 02 May 2026 19:21:43 +0000

Shelves moving and people hanging suits on them come to mind.

New comment by bobmcnamara in "Linux 7.0 Broke PostgreSQL: The Preemption Regression Explained"

bobmcnamara — Wed, 29 Apr 2026 17:58:31 +0000

Userspace spinlocks seem like a risky idea too.

What if it was on a VM and the core holding the lock got descheduled from the hypervisor?

New comment by bobmcnamara in "8087 Emulation on 8086 Systems"

bobmcnamara — Sat, 25 Apr 2026 18:36:41 +0000

Cool! What do they do?

Edit: double precision floating point and fixed latency GPIO at least!

New comment by bobmcnamara in "8087 Emulation on 8086 Systems"

bobmcnamara — Fri, 24 Apr 2026 14:32:45 +0000

Pre-Cortex ARM CPUs were the same way.

Chips did fit crypto engines, matrix multipliers, FFT offload, and color converters there.

New comment by bobmcnamara in "Meta tells staff it will cut 10% of jobs"

bobmcnamara — Fri, 24 Apr 2026 14:31:03 +0000

Unemployment is an economic feature for wage modulation, not a bug.

New comment by bobmcnamara in "Floating Point Fun on Cortex-M Processors"

bobmcnamara — Sun, 19 Apr 2026 03:09:47 +0000

Yes, you could turn it off every context switch.

New comment by bobmcnamara in "Pro Max 5x quota exhausted in 1.5 hours despite moderate usage"

bobmcnamara — Sun, 12 Apr 2026 14:38:29 +0000

T&C?

New comment by bobmcnamara in "What is RISC-V and why it matters to Canonical"

bobmcnamara — Sat, 11 Apr 2026 00:48:48 +0000

Really? Didn't China pirate the entire ARM China company and start spamming cores like Star1

New comment by bobmcnamara in "What is RISC-V and why it matters to Canonical"

bobmcnamara — Sat, 11 Apr 2026 00:48:01 +0000

Also load/store backwards, but no reverse the register instructions

New comment by bobmcnamara in "A macOS bug that causes TCP networking to stop working after 49.7 days"

bobmcnamara — Mon, 06 Apr 2026 23:11:31 +0000

WinCE too

New comment by bobmcnamara in "Artemis II crew see first glimpse of far side of Moon [video]"

bobmcnamara — Sun, 05 Apr 2026 18:19:09 +0000

we've also got 50 years of baseline tech improvement to try out.

In the 60s we weren't going to land in the darkness because we couldn't see to land.

But the shadows are probably where the water might be, and that's where we're going next!

New comment by bobmcnamara in "Iran Strikes Leave Amazon Availability Zones "Hard Down" in Bahrain and Dubai"

bobmcnamara — Fri, 03 Apr 2026 23:37:25 +0000

Hey now, we had space stations with cannons in what, the 70s?

New comment by bobmcnamara in "Iran strikes leave Amazon availability zones "hard down" in Bahrain and Dubai"

bobmcnamara — Fri, 03 Apr 2026 23:36:20 +0000

Some systems are anycast and available in many datacenters for bandwidth cost reasons. Netflix used to deploy content caches in ISP edges.

But any single central point of failure might break them. Things like, is this account paid? Dunno!

New comment by bobmcnamara in "Teenage Engineering's PO-32 acoustic modem and synth implementation"

bobmcnamara — Wed, 01 Apr 2026 00:02:41 +0000

Kansas City Standard was delivered on cheap records through the mail

New comment by bobmcnamara in "TSA lines are so out of control that travelers are hiring line-sitters"

bobmcnamara — Sun, 29 Mar 2026 14:26:08 +0000

The party who controls all three branches of federal government?

New comment by bobmcnamara in "Arm AGI CPU"

bobmcnamara — Tue, 24 Mar 2026 19:43:02 +0000

6GB/s/core

That's...not much right? Maybe it's a lot times N-cores? But I really hope each individual core isn't limited to that.

Edit: 17 minutes to sum RAM?

New comment by bobmcnamara in "Alpha Micro AM-1000E and AM-1200"

bobmcnamara — Sun, 22 Mar 2026 15:27:23 +0000

If only we had rust back then

New comment by bobmcnamara in "Our commitment to Windows quality"

bobmcnamara — Fri, 20 Mar 2026 21:06:06 +0000

Is this April fools?

The fix is upside down UI?

New comment by bobmcnamara in "Anthropic takes legal action against OpenCode"

bobmcnamara — Thu, 19 Mar 2026 20:27:20 +0000

> Paranoid that anthropic is going to torpedo them via some backdoor

Like with lawyers or something?