On Thu, Mar 26, 2020 at 09:13:54PM +0000, Nick Terrell wrote: > >> What do you mean by that? Can you share with me the test you ran? > >> Is this for kernel decompression or initramfs decompression? > > Initramfs - you can apply my v2 patch on v5.5 and try with your test data. > > > > I have tested your patch also on ARMv7 platform and there the degradation > > was 8%. > > Are you comparing the performance of an 8 MB window size vs a 128 MB > window size? No, I use the same initramfs file with 2 different kernels for the test. I have removed if (params.windowSize > ZSTD_WINDOWSIZE_MAX) goto out; from your code. Petr