Bug 192490

Summary: webkitpy: WinCairoPort.default_child_processes should return the appropriate default number of DumpRenderTree processes
Product: WebKit Reporter: Fujii Hironori <Hironori.Fujii>
Component: Tools / TestsAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: lforschler
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
WIP patch none

Description Fujii Hironori 2018-12-07 01:13:49 PST
webkitpy: WinCairoPort.default_child_processes should return the appropriate default number of DumpRenderTree processes

As discussed in Bug 192486, it should be based on the number of CPU and RAM size.

Mac port has such implementation.
https://github.com/WebKit/webkit/blob/9e192ff36b8e90d6361dae8b1e3022aa5c0d83e9/Tools/Scripts/webkitpy/port/mac.py#L191
Comment 1 Fujii Hironori 2018-12-09 23:59:32 PST
Here is the return value of win32api.GlobalMemoryStatusEx() on WinCairo Docker container.

> {'TotalPageFile': 39459540992L, 'AvailVirtual': 140737373986816L, 'MemoryLoad': 30, 'TotalPhys': 34359267328L, 'AvailExtendedVirtual': 0L, 'Length': 64, 'TotalVrtual': 140737488224256L, 'AvailPhys': 23751901184L, 'AvailPageFile': 29975863296L}

Here is the one on my PC.

> {'TotalPageFile': 39389532160L, 'AvailVirtual': 140733064794112L, 'MemoryLoad': 25, 'TotalPhys': 34289258496L, 'AvailExtendedVirtual': 0L, 'Length': 64, 'TotalVirtual': 140737488224256L, 'AvailPhys': 25691299840L, 'AvailPageFile': 26506842112L}

The Docker container says it has enough RAM.
Umm, I can't use this approach for Bug 188036.
Comment 2 Fujii Hironori 2018-12-10 00:19:28 PST
Created attachment 356948 [details]
WIP patch
Comment 3 Fujii Hironori 2018-12-10 00:20:13 PST
How can Python script know if it is run on a Docker container?