Cleanup runtime module - part 1

[aurianer]

Fixes partially #16. Part 2 in #1091.

[pika-bot]

Performance test report

pika Performance

Comparison

BENCHMARK	RESULT
Task Overhead - Create Thread Hierarchical - Latch	-

Info

Property	Before	After
pika Commit	02f9de8	9cd38b2
pika Datetime	2023-08-21T11:44:55+00:00	2024-01-05T09:15:58+00:00
Hostname	nid01181	nid01322
Envfile
Clustername	daint	daint
Compiler	/apps/daint/SSL/pika/spack/lib/spack/env/clang/clang++ 11.0.1	/apps/daint/SSL/pika/spack/lib/spack/env/clang/clang++ 11.0.1
Datetime	2023-08-21T13:50:51.685166+02:00	2024-01-05T10:27:53.259914+01:00

Explanation of Symbols

Symbol	MEANING
=	No performance change (confidence interval within ±1%)
(=)	Probably no performance change (confidence interval within ±2%)
(+)/(-)	Very small performance improvement/degradation (≤1%)
+/-	Small performance improvement/degradation (>10%)
++/--	Large performance improvement/degradation (>10%)
+++/---	Very large performance improvement/degradation (>10%)
?	Probably no change, but quite large uncertainty (confidence interval with ±5%)
??	Unclear result, very large uncertainty (±10%)
???	Something unexpected…

[msimberg]

@aurianer what's the status of this? Is there anything missing? Would you need help with anything?

[aurianer]

I will go through my notes again next week for this, thanks for pointing it out