[TUHS] Who's behind the UNIX filesystem permission

David Arnold davida at pobox.com
Fri Aug 2 11:03:34 AEST 2019

On 2 Aug 2019, at 09:43, Noel Chiappa <jnc at mercury.lcs.mit.edu> wrote:

> Speaking of LISP and GC, it's impressive how GC is not really a big issue any
> more. At one point people were even building special CPUs that had hardware
> support for GC; now it seems to be a 'solved problem' on ordinary CPUs.

I think it’s mostly a side effect of modern hardware speeds. For applications that care about latency (and especially latency jitter) it’s still an issue. 

For example, writing low latency trading software in Java requires some fairly silly hoop-jumping to avoid triggering a collection pass.

These apps genuinely care about nanoseconds, but the tooling ecosystem and development time advantages of Java seem to entice a decent number of people to embark on the work-arounds. 

In most areas though you’re absolutely right — it’s a non-issue now. 


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