[bug #42288] limit parallelism based on available memory

[Dave Yost]

URL:
  <http://savannah.gnu.org/bugs/?42288>

                 Summary: limit parallelism based on available memory
                 Project: make
            Submitted by: yost
            Submitted on: Sun 04 May 2014 03:03:17 PM PDT
                Severity: 3 - Normal
              Item Group: Enhancement
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
       Component Version: None
        Operating System: None
           Fixed Release: None
           Triage Status: None

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Details:

In our Makefile, there is a set of parallelizable jobs that use a lot of
memory.

It would be nice to run as many in parallel as possible without thrashing in
virtual memory.

It would be nice if there were a command-line option to allow one to express
this constraint.

The option might say how much memory the largest job in the set is expected to
require.





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