Rework description of the "max-cache-size" option

Improve the description of the "max-cache-size" option in the ARM by
focusing on its meaning for multiple views and default values.
Add mention of a hash table preallocation.
70 jobs for !5173 with 2279-expand-description-of-the-max-cache-size-option in 2 minutes and 28 seconds (queued for 6 seconds)
latest detached
Status Job ID Name Coverage
  Autoconf
passed #1818822
amd64 linux
autoreconf

00:00:19

 
  Precheck
passed #1818824
amd64 linux
clang-format

00:00:16

canceled #1818825
amd64 linux
coccinelle

00:02:26

passed #1818826
amd64 linux
danger

00:00:26

passed #1818823
amd64 linux
misc

00:00:17

passed #1818827
amd64 linux
tarball-create

00:01:36

 
  Build
canceled #1818840
amd64 linux
clang:asan

00:01:55

passed #1818843
amd64 linux
clang:buster:amd64

00:01:06

passed #1818846
amd64 libvirt
clang:freebsd12:amd64

00:01:22

canceled #1818847
amd64 libvirt
clang:freebsd13:amd64

00:02:03

canceled #1818848
amd64 libvirt
clang:openbsd:amd64

00:01:50

passed #1818842
amd64 linux
clang:tsan

00:01:20

passed #1818828
amd64 linux
gcc:alpine3.14:amd64

00:01:09

passed #1818839
amd64 linux
gcc:asan

00:01:32

passed #1818837
amd64 linux
gcc:bionic:amd64

00:00:59

passed #1818832
amd64 linux
gcc:buster:amd64

00:00:54

passed #1818829
amd64 linux
gcc:centos7:amd64

00:00:55

passed #1818830
amd64 linux
gcc:centos8:amd64

00:01:01

passed #1818838
amd64 linux
gcc:focal:amd64

00:01:05

passed #1818834
amd64 linux
gcc:out-of-tree

00:01:01

passed #1818833
amd64 linux
gcc:sid:amd64

00:01:17

passed #1818844
amd64 linux
gcc:softhsm2.4

00:00:56

passed #1818845
amd64 linux
gcc:softhsm2.6

00:00:55

passed #1818831
amd64 linux
gcc:stretch:amd64

00:01:15

canceled #1818835
amd64 linux
gcc:tarball

00:00:29

passed #1818841
amd64 linux
gcc:tsan

00:01:06

passed #1818836
amd64 linux
gcc:tumbleweed:amd64

00:01:01

 
  Unit
canceled #1818859
amd64 linux
unit:clang:asan

canceled #1818862
amd64 linux
unit:clang:buster:amd64

00:00:46

canceled #1818865
amd64 libvirt
unit:clang:freebsd12:amd64

00:00:39

canceled #1818866
amd64 libvirt
unit:clang:freebsd13:amd64

canceled #1818867
amd64 libvirt
unit:clang:openbsd:amd64

canceled #1818861
amd64 linux
unit:clang:tsan

00:00:40

canceled #1818849
amd64 linux
unit:gcc:alpine3.14:amd64

00:00:41

canceled #1818858
amd64 linux
unit:gcc:asan

00:00:13

canceled #1818856
amd64 linux
unit:gcc:bionic:amd64

00:00:57

canceled #1818853
amd64 linux
unit:gcc:buster:amd64

00:01:08

canceled #1818850
amd64 linux
unit:gcc:centos7:amd64

00:01:09

canceled #1818851
amd64 linux
unit:gcc:centos8:amd64

00:01:01

canceled #1818857
amd64 linux
unit:gcc:focal:amd64

00:00:47

canceled #1818854
amd64 linux
unit:gcc:sid:amd64

00:00:40

canceled #1818863
amd64 linux
unit:gcc:softhsm2.4

00:00:53

canceled #1818864
amd64 linux
unit:gcc:softhsm2.6

00:01:10

passed #1818852
amd64 linux
unit:gcc:stretch:amd64

00:00:32

canceled #1818860
amd64 linux
unit:gcc:tsan

00:00:44

canceled #1818855
amd64 linux
unit:gcc:tumbleweed:amd64

00:00:54

 
  System
canceled #1818878
amd64 linux
system:clang:asan

canceled #1818881
amd64 linux
system:clang:buster:amd64

00:00:40

canceled #1818884
amd64 libvirt
system:clang:freebsd12:amd64

00:00:38

canceled #1818885
amd64 libvirt
system:clang:freebsd13:amd64

canceled #1818880
amd64 linux
system:clang:tsan

00:00:36

canceled #1818868
amd64 linux
system:gcc:alpine3.14:amd64

00:00:39

canceled #1818877
amd64 linux
system:gcc:asan

00:00:09

canceled #1818875
amd64 linux
system:gcc:bionic:amd64

00:00:53

canceled #1818872
amd64 linux
system:gcc:buster:amd64

canceled #1818869
amd64 linux
system:gcc:centos7:amd64

00:01:09

canceled #1818870
amd64 linux
system:gcc:centos8:amd64

00:01:01

canceled #1818876
amd64 linux
system:gcc:focal:amd64

00:00:47

canceled #1818873
amd64 linux
system:gcc:sid:amd64

00:00:39

canceled #1818882
amd64 linux
system:gcc:softhsm2.4

00:00:52

canceled #1818883
amd64 linux
system:gcc:softhsm2.6

00:01:09

canceled #1818871
amd64 linux
system:gcc:stretch:amd64

00:00:43

canceled #1818879
amd64 linux
system:gcc:tsan

00:00:43

canceled #1818874
amd64 linux
system:gcc:tumbleweed:amd64

00:00:53

 
  Docs
passed #1818886
amd64 linux
docs

00:01:01

 
  Postcheck
passed #1818890
amd64 linux
cppcheck

00:00:32

passed #1818887
amd64 linux
flake8

00:00:22

canceled #1818891
amd64 linux
gcov

passed #1818888
amd64 linux
pylint

00:00:37

canceled #1818889
amd64 linux
scan-build

00:01:51