RE: [racket-users] Re: Alternatives to DrRacket

2018-01-12 Thread Jos Koot
+1
On windows it is the same.
It would be nice to have the option to revert defaults for the current tab only.
Jos

  _  

From: racket-users@googlegroups.com [mailto:racket-users@googlegroups.com] On 
Behalf Of JCG
Sent: viernes, 12 de enero de 2018 01:38
To: Racket Users
Subject: [racket-users] Re: Alternatives to DrRacket


 snip  

6) In the preferences dialog (on a Mac at least), the "Revert All Preferences 
to Defaults" is unclear about whether the defaults are
for the displayed tab or for all preferences.  At least twice in the past, I've 
incorrectly assumed that the defaults were for the
topic displayed and not all preferences.  I fiddled with the background 
expansion and finally decided "Oh, I'll just put it back to
whatever is suggested - bam, all my other settings were gone."

 snip 

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Re: [racket-users] Re: Alternatives to DrRacket

2017-11-27 Thread George Neuner


On 11/27/2017 3:30 PM, Zelphir Kaltstahl wrote:


Memory limits can be easily added to a program as well with the 
following code:


~~~
(define (Mb-to-B n) (* n 1024 1024))
(define MAX-BYTES (Mb-to-B 128))
(custodian-limit-memory (current-custodian) MAX-BYTES)
~~~


The problem with  custodian-limit-memory  is that it doesn't actually 
limit how much memory the custodian can allocate - the limit is enforced 
only *after* GC runs.  Between GC runs, the custodian could allocate far 
more than the limit.


I'd like a command line switch that puts a hard limit on heap size ... 
similar to the server JVM.  Using ULIMIT on Linux you can restrict 
process data size, but Windows offers no simple way to do that.  It can 
be done clumsily on Windows using containers or with "job objects", but 
few people have containers set up on their Windows boxes and the few job 
objects tools I am aware of work only on already running processes ... 
there's no simple way to start a process that is restricted from the 
beginning.


George

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