smaps_rollup was added in v4.14. Details on this page:
https://kernelnewbies.org/Linux_4.14
It should be a constant ~1ms vs 6.8ms (and far higher) when reading entire smaps file
(Tested on my 5.15 kernel)
smaps_rollup info:
https://patchwork.kernel.org/project/linux-fsdevel/patch/20170812022148.178293-1-dancol[at]google.com/
Smaps info:
> FPlatformMemory::GetExtendedStats() is slow and took 28ms in my local tests.
> Moreover, it can be even slower because the time it takes is a (hopefully
> linear) function of the number of memory allocations.
#jira UE-139749, UE-52126
[REVIEW] Brandon.Schaefer, Arciel.Rekman
[FYI] Brian.Bekich, Ilya.Loshchinin, Robert.Seiver
#preflight trivial
#ROBOMERGE-AUTHOR: michael.sartain
#ROBOMERGE-SOURCE: CL 18683396 via CL 18683443 via CL 18683460 via CL 18684028 via CL 18684035 via CL 18684055
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v902-18672795)
[CL 18684069 by michael sartain in ue5-main branch]
This is similar to CL 2421073, 2424491 for FApplePlatformFile.
[at]Brandon.Schaefer, [at]Robert.Seiver
[FYI] Will.Damon
#jira none
#preflight trivial
#ROBOMERGE-AUTHOR: michael.sartain
#ROBOMERGE-SOURCE: CL 18604349 in //UE5/Release-5.0/... via CL 18604376 via CL 18604394
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v899-18417669)
[CL 18604413 by michael sartain in ue5-main branch]
Changed underlying API from posix_spawn to posix_spawnp, which only differs in behavior if the provided path fragment does not contain any path separators. Matches within the base directory are still prioritized if they exist. Failures are no longer treated as fatal.
#jira UE-138792
#rb Brandon.Schaefer, Michael.Sartain
#preflight 61ddd69fcd2cced71060929a
#ROBOMERGE-AUTHOR: zach.brockway
#ROBOMERGE-SOURCE: CL 18575611 in //UE5/Release-5.0/... via CL 18575644
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)
[CL 18575658 by zach brockway in ue5-release-engine-test branch]
Also move stack to mmap'd memory instead of alloc'ing in heap
Should allow us to set & reduce size of 200k stack significantly via command line.
Brandon.Schaefer
#jira none
#preflight 61dc61cb1f62d3ad4d8079d4
#ROBOMERGE-AUTHOR: michael.sartain
#ROBOMERGE-SOURCE: CL 18561402 in //UE5/Release-5.0/... via CL 18561404
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)
[CL 18561421 by michael sartain in ue5-release-engine-test branch]
Windows needs to set permissions accordingly.
#rb Brandon.Schaefer
[FYI] Josh.Adams
#preflight 61d79ed84c252480ca31e640
#ROBOMERGE-AUTHOR: jack.porter
#ROBOMERGE-SOURCE: CL 18539045 in //UE5/Release-5.0/... via CL 18539064
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)
[CL 18539081 by jack porter in ue5-release-engine-test branch]
#tests Crashed on Linux with nullptr and non-null ptr
#rb Brandon.Schaefer
#preflight 61b245cafb3115178686b4a7
#ROBOMERGE-AUTHOR: ilya.loshchinin
#ROBOMERGE-SOURCE: CL 18422416 via CL 18422444 via CL 18422465 via CL 18435085 via CL 18437383
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v897-18405271)
[CL 18437661 by ilya loshchinin in ue5-release-engine-test branch]
Add stderr parameter to CreateProc
Add exec-process test to TestPAL
PR #6919: Add a new FPlatformProcess::CreateProc() overload to allow separating stderr and stdout (Contributed by geordiemhall)
#rb Brandon.Schaefer, James.Singer, Robert.Seiver, Will.Damon
#jira UE-91758, UE-92964
#ROBOMERGE-SOURCE: CL 17290306 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v861-17282326)
[CL 17290325 by geordiemhall in ue5-release-engine-test branch]
Change all FPlatformMemory::OnOutOfMemory implementations to [[noreturn]]
#jira UE-93728
#rb steve.robb, arciel.rekman
#ROBOMERGE-SOURCE: CL 17212898 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v855-17104924)
[CL 17212911 by johan torp in ue5-release-engine-test branch]
Make mimalloc really activated by default now that we know it doesn't cause major issues
#rnx
#rb Arciel.Rekman, Michael Sartain
#preflight 61081ce65b2fb8000166c651
#ROBOMERGE-SOURCE: CL 17029176 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v845-17028103)
[CL 17029184 by danny couture in ue5-release-engine-test branch]
* Stop adding/removing FTicker delegates outside the game-thread
* Made the concurrently uploading processes thread-safe using atomic state machine
* Added option to limit the number of processes on dedicated game servers
* Fix ensures not getting sent on dedicated game servers
#rb brandon.schaefer, robert.siever, ryan.gerleve
#jira FORT-392630
#ushell-cherrypick of 16969720 by louisphilippe.seguin
#ROBOMERGE-SOURCE: CL 16968970 in //Fortnite/Release-17.30/... via CL 16968983 via CL 16982775
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v838-16927207)
[CL 16982781 by louisphilippe seguin in ue5-release-engine-test branch]
Fix typo where double slash were used
#rnx
#rb trivial
#preflight 60d1fe1fbe81e80001837c38
#ROBOMERGE-SOURCE: CL 16744965 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v835-16672529)
[CL 16744987 by danny couture in ue5-release-engine-test branch]
- This will make maintenance for multiple platforms a lot easier (i.e. just preflight)
- Will be easy to get callstack and debug since it will be compiled on the machine it is debugged on
- Easier to try out modifications on mimalloc itself
- Fix mimalloc compilation under Clang 10
- Fix mimalloc inconsistent usage of MI_ENCODE_FREELIST define
- Fix mimalloc inconsistent usage of _WIN32 define
- Implement MacOS and Unix -mimalloc command-line switch
- Some MacOS changes were contributed by Will.Damon
#rb Brandon.Schaefer, Will.Damon
#preflight 60b4ea613c6c4e000158233e
#rnx
[CL 16512512 by danny couture in ue5-main branch]
