fossilize_replay uses only single thread

[vmpn]

Actual behavior: Starting Warframe under Linux takes over 20 minutes as fossilize_replay uses single thread only.

Expected: All CPU threads are utilized

command being run by steam:

~/.steam/debian-installation/ubuntu12_32/../ubuntu12_64/fossilize_replay ~/.steam/debian-installation/steamapps/shadercache/230410/fozpipelinesv4/steamapp_pipeline_cache.foz ~/.steam/debian-installation/steamapps/shadercache/230410/fozpipelinesv4/steam_pipeline_cache.foz --master-process --quiet-slave --shmem-fd 96 --spirv-val --on-disk-validation-whitelist ~/.steam/debian-installation/steamapps/shadercache/230410/fozpipelinesv4/steam_pipeline_cache_whitelist --device-index 0 --timeout-seconds 10 --implicit-whitelist 0

Package: steam:i386 Version: 1.0.0.64-1 Priority: optional Section: non-free/games Maintainer: Debian Games Team <pkg-games-devel@lists.alioth.debian.org> Installed-Size: 4,807 kB Pre-Depends: debconf Depends: curl, file, libgcc-s1 | libgcc1, libgl1-mesa-dri (>= 17.3), libgl1, libgpg-error0 (>= 1.10), libstdc++6 (>= 4.8), libudev1, libxcb-dri3-0 (>= 1.11.1), libxcb1, libxinerama1 (>= 2:1.1.1), xz-utils, debconf (>= 0.5) | debconf-2.0, libc6 (>= 2.15), libx11-6 Recommends: ca-certificates, fontconfig, fonts-liberation, libxss1, mesa-vulkan-drivers, steam-devices, xdg-utils, xterm | x-terminal-emulator, zenity Suggests: nvidia-driver-libs-i386, nvidia-vulkan-icd Conflicts: steam-launcher Replaces: steam-launcher Homepage: https://steamcommunity.com/linux Download-Size: 1,548 kB APT-Manual-Installed: yes APT-Sources: https://deb.debian.org/debian testing/non-free i386 Packages Description: Valve's Steam digital software delivery system Steam (https://www.steampowered.com) is a software content delivery system developed by Valve software (https://www.valvesoftware.com). There is some free software available, but for the most part the content delivered is non-free. . This package comes with a fairly substantial non-free license agreement that must be accepted before installing the software. If you have any opposition to non-free work, please select "I DECLINE" during the package installation dialogs. There are also additional agreements in various parts of the application that differ from the original agreement. In other words, pay attention and read carefully if you're worried about your rights.

Linux <hostname> 5.7.0-1-amd64 #1 SMP Debian 5.7.6-1 (2020-06-24) x86_64 GNU/Linux

[vmpn]

Latest version of Steam beta now running multiple threads