Use psutil instead of various hacks

[jdemeyer]

The following modules can mostly replaced by simple calls to psutil:

• sage.misc.getusage
• sage.misc.memory_info
• sage.misc.darwin_utilities

All usage of these modules is replaced by some simple wrappers around psutil. These wrappers are implemented in sage.misc.getusage.

Component: misc

Author: Jeroen Demeyer

Branch/Commit: 9f629df

Reviewer: Jean-Pierre Flori

Issue created by migration from https://trac.sagemath.org/ticket/21805

[jdemeyer]

Description changed:

--- 
+++ 
@@ -1 +1 @@
-Replace uses of `sage.misc.memory_info` by the `psutil` package.
+Replace uses of `sage.misc.memory_info` and `sage.misc.darwin_utilities` by the `psutil` package.

[jdemeyer]

Description changed:

--- 
+++ 
@@ -1 +1,7 @@
-Replace uses of `sage.misc.memory_info` and `sage.misc.darwin_utilities` by the `psutil` package.
+The following modules can mostly replaced by simple calls to `psutil`:
+
+* `sage.misc.getusage`
+* `sage.misc.memory_info`
+* `sage.misc.darwin_utilities`
+
+All usage of these modules is replaced by some simple wrappers around `psutil`. These wrappers are implemented in `sage.misc.getusage`.

[jdemeyer]

Branch: u/jdemeyer/use_psutil_instead_of_sage_misc_memory_info

[jdemeyer]

Author: Jeroen Demeyer

[jdemeyer]

Commit: 46832bc

[jdemeyer]

New commits:

46832bc

Use psutil instead of various hacks

[jpflori]

Reviewer: Jean-Pierre Flori

[jpflori]

comment:5

Looks goot to me.