Bump the netmgr quantum to 1024

During the stress testing, it was discovered that the default netmgr
quantum of 128 is not enough and there was a performance drop for TCP on
FreeBSD.  Bumping the default quantum to 1024 solves the performance
issue and is still enough to prevent the endless loops.
73 jobs for !5009 with ondrej/increase-netmgr-quantum in 38 minutes and 2 seconds (queued for 8 seconds)
latest detached
Status Job ID Name Coverage
  Autoconf
passed #1706052
amd64 linux
autoreconf

00:00:17

 
  Precheck
passed #1706054
amd64 linux
clang-format

00:00:18

passed #1706055
amd64 linux
coccinelle

00:03:43

passed #1706056
amd64 linux
danger

00:00:18

passed #1706053
amd64 linux
misc

00:00:19

passed #1706057
amd64 linux
tarball-create

00:01:29

 
  Build
passed #1706068
amd64 linux
clang:asan

00:02:02

passed #1706072
amd64 linux
clang:buster:amd64

00:00:56

passed #1706075
amd64 libvirt
clang:freebsd11:amd64

00:01:12

passed #1706076
amd64 libvirt
clang:freebsd12:amd64

00:01:07

passed #1706077
amd64 libvirt
clang:openbsd:amd64

00:02:50

passed #1706070
amd64 linux
clang:tsan

00:01:13

passed #1706058
amd64 linux
gcc:alpine3.13:amd64

00:01:01

passed #1706067
amd64 linux
gcc:asan

00:01:44

passed #1706062
amd64 linux
gcc:buster:amd64

00:00:42

passed #1706059
amd64 linux
gcc:centos7:amd64

00:00:53

passed #1706060
amd64 linux
gcc:centos8:amd64

00:00:57

passed #1706066
amd64 linux
gcc:focal:amd64

00:00:54

passed #1706071
amd64 linux
gcc:mutexatomics

00:01:01

passed #1706064
amd64 linux
gcc:out-of-tree

00:00:51

passed #1706063
amd64 linux
gcc:sid:amd64

00:01:15

passed #1706073
amd64 linux
gcc:softhsm2.4

00:00:54

passed #1706074
amd64 linux
gcc:softhsm2.6

00:00:57

passed #1706061
amd64 linux
gcc:stretch:amd64

00:01:02

passed #1706069
amd64 linux
gcc:tsan

00:01:09

passed #1706065
amd64 linux
gcc:tumbleweed:amd64

00:00:52

passed #1706078
amd64 windows
msvc:windows:amd64

00:00:47

 
  Unit
passed #1706088
amd64 linux
unit:clang:asan

00:02:08

passed #1706092
amd64 linux
unit:clang:buster:amd64

00:01:28

passed #1706095
amd64 libvirt
unit:clang:freebsd11:amd64

00:01:54

passed #1706096
amd64 libvirt
unit:clang:freebsd12:amd64

00:01:40

passed #1706097
amd64 libvirt
unit:clang:openbsd:amd64

00:03:31

passed #1706090
amd64 linux
unit:clang:tsan

00:03:45

passed #1706079
amd64 linux
unit:gcc:alpine3.13:amd64

00:01:25

passed #1706087
amd64 linux
unit:gcc:asan

00:01:57

passed #1706083
amd64 linux
unit:gcc:buster:amd64

00:02:29

passed #1706080
amd64 linux
unit:gcc:centos7:amd64

00:01:20

passed #1706081
amd64 linux
unit:gcc:centos8:amd64

00:01:21

passed #1706086
amd64 linux
unit:gcc:focal:amd64

00:01:26

passed #1706091
amd64 linux
unit:gcc:mutexatomics

00:01:21

passed #1706084
amd64 linux
unit:gcc:sid:amd64

00:01:27

passed #1706093
amd64 linux
unit:gcc:softhsm2.4

00:01:19

passed #1706094
amd64 linux
unit:gcc:softhsm2.6

00:01:23

passed #1706082
amd64 linux
unit:gcc:stretch:amd64

00:00:13

passed #1706089
amd64 linux
unit:gcc:tsan

00:04:11

passed #1706085
amd64 linux
unit:gcc:tumbleweed:amd64

00:01:22

 
  System
passed #1706107
amd64 linux
system:clang:asan

00:14:22

passed #1706111
amd64 linux
system:clang:buster:amd64

00:12:11

passed #1706114
amd64 libvirt
system:clang:freebsd11:amd64

00:11:47

passed #1706115
amd64 libvirt
system:clang:freebsd12:amd64

00:11:52

passed #1706127
amd64 linux
system:clang:tsan

00:16:23

passed #1706098
amd64 linux
system:gcc:alpine3.13:amd64

00:12:49

passed #1706106
amd64 linux
system:gcc:asan

00:15:42

passed #1706102
amd64 linux
system:gcc:buster:amd64

00:13:57

passed #1706099
amd64 linux
system:gcc:centos7:amd64

00:13:31

passed #1706100
amd64 linux
system:gcc:centos8:amd64

00:12:43

passed #1706105
amd64 linux
system:gcc:focal:amd64

00:12:28

passed #1706110
amd64 linux
system:gcc:mutexatomics

00:13:13

passed #1706103
amd64 linux
system:gcc:sid:amd64

00:12:06

passed #1706112
amd64 linux
system:gcc:softhsm2.4

00:12:43

passed #1706113
amd64 linux
system:gcc:softhsm2.6

00:12:42

passed #1706125
amd64 linux
system:gcc:stretch:amd64

00:11:55

passed #1706126
amd64 linux
system:gcc:tsan

00:16:41

passed #1706104
amd64 linux
system:gcc:tumbleweed:amd64

00:12:10

failed #1706109
amd64 linux
system:clang:tsan

00:18:37

failed #1706101
amd64 linux
system:gcc:stretch:amd64

00:12:16

failed #1706108
amd64 linux
system:gcc:tsan

00:18:56

 
  Docs
passed #1706116
amd64 linux
docs

00:00:49

 
  Postcheck
passed #1706120
amd64 linux
cppcheck

00:00:45

passed #1706117
amd64 linux
flake8

00:00:20

passed #1706121
amd64 linux
gcov

00:00:37

78.0%
passed #1706118
amd64 linux
pylint

00:00:24

passed #1706119
amd64 linux
scan-build

00:04:07