Optimize ReSTIR pipeline performance #973

Job	Run time
macos-13 / Release / homebrew-clang	22m 41s
macos-13 / Debug / homebrew-clang	23m 8s
windows-2019 / Release / cl	37m 20s
ubuntu-22.04 / Release / gcc-11	18m 54s
ubuntu-22.04 / Debug / gcc-11	16m 32s
windows-2019 / Release / clang	39m 32s
ubuntu-22.04 / Release / gcc-12	22m 47s
windows-2019 / Release / clang-cl	37m 24s
ubuntu-22.04 / Debug / gcc-12	19m 11s
windows-2019 / Debug / cl	28m 44s
ubuntu-22.04 / Release / gcc-13	28m 3s
ubuntu-22.04 / Debug / gcc-13	26m 13s
windows-2019 / Debug / clang	28m 22s
windows-2019 / Debug / clang-cl	28m 41s
windows-2022 / Release / cl	43m 23s
ubuntu-22.04 / Release / clang-14	18m 14s
windows-2022 / Release / clang	41m 53s
ubuntu-22.04 / Debug / clang-14	14m 36s
windows-2022 / Release / clang-cl	34m 54s
ubuntu-22.04 / Release / clang-15	19m 0s
windows-2022 / Debug / cl	34m 17s
ubuntu-22.04 / Debug / clang-15	15m 37s
ubuntu-22.04 / Release / clang-16	19m 10s
windows-2022 / Debug / clang	40m 9s
ubuntu-22.04 / Debug / clang-16	15m 52s
windows-2022 / Debug / clang-cl	40m 28s
ubuntu-22.04 / Release / clang-17	27m 34s
ubuntu-22.04 / Debug / clang-17	21m 54s
	12h 44m 33s

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