creating child process on each iteration

[Carsak]

now each IO-blocking operation invoked in separate process

Debug log

------------------------
2023.12.02 10:44:50
Array
(
    [message] => Script ended
    [month] => 
    [start] => 1701513890.2775
    [finish] => 1701513890.4864
    [total] => 0.20886301994324
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process On event
    [month] => 3
    [start] => 1701513890.6605
    [finish] => 1701513892.7036
    [total] => 2.0431530475616
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process close event
    [month] => 3
    [start] => 1701513890.6605
    [finish] => 1701513892.7087
    [total] => 2.048180103302
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process On event
    [month] => 10
    [start] => 1701513890.6615
    [finish] => 1701513892.7319
    [total] => 2.0703518390656
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process On event
    [month] => 9
    [start] => 1701513890.6614
    [finish] => 1701513892.7352
    [total] => 2.0737991333008
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process close event
    [month] => 10
    [start] => 1701513890.6615
    [finish] => 1701513892.737
    [total] => 2.0755269527435
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process On event
    [month] => 1
    [start] => 1701513890.648
    [finish] => 1701513892.7364
    [total] => 2.0884811878204
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process close event
    [month] => 9
    [start] => 1701513890.6614
    [finish] => 1701513892.7389
    [total] => 2.0775599479675
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process close event
    [month] => 1
    [start] => 1701513890.648
    [finish] => 1701513892.7398
    [total] => 2.0918211936951
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process On event
    [month] => 7
    [start] => 1701513890.6606
    [finish] => 1701513892.75
    [total] => 2.0894131660461
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process close event
    [month] => 7
    [start] => 1701513890.6606
    [finish] => 1701513892.7546
    [total] => 2.094053030014
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process On event
    [month] => 6
    [start] => 1701513890.809
    [finish] => 1701513892.7664
    [total] => 1.9574861526489
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process close event
    [month] => 6
    [start] => 1701513890.809
    [finish] => 1701513892.7706
    [total] => 1.9616100788116
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process On event
    [month] => 2
    [start] => 1701513890.6608
    [finish] => 1701513892.7962
    [total] => 2.13547706604
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process close event
    [month] => 2
    [start] => 1701513890.6608
    [finish] => 1701513892.8012
    [total] => 2.140426158905
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process On event
    [month] => 4
    [start] => 1701513890.6613
    [finish] => 1701513892.8998
    [total] => 2.2385802268982
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process On event
    [month] => 12
    [start] => 1701513890.6605
    [finish] => 1701513892.9014
    [total] => 2.2408649921417
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process close event
    [month] => 4
    [start] => 1701513890.6613
    [finish] => 1701513892.9047
    [total] => 2.2434561252594
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process close event
    [month] => 12
    [start] => 1701513890.6605
    [finish] => 1701513892.9048
    [total] => 2.2443058490753
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process On event
    [month] => 5
    [start] => 1701513890.6606
    [finish] => 1701513892.9034
    [total] => 2.2427599430084
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process close event
    [month] => 5
    [start] => 1701513890.6606
    [finish] => 1701513892.9071
    [total] => 2.246435880661
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process On event
    [month] => 11
    [start] => 1701513890.6622
    [finish] => 1701513892.9282
    [total] => 2.2660479545593
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process close event
    [month] => 11
    [start] => 1701513890.6622
    [finish] => 1701513892.9328
    [total] => 2.2706441879272
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process On event
    [month] => 8
    [start] => 1701513890.6607
    [finish] => 1701513892.9854
    [total] => 2.3247010707855
)

------------------------

------------------------
2023.12.02 10:44:52
Array
(
    [message] => Child process close event
    [month] => 8
    [start] => 1701513890.6607
    [finish] => 1701513892.9901
    [total] => 2.3293850421906
)

------------------------