gistfile1.txt

== zen2, 3900x
buf_size=67108864 bytes, queries=65536, iters=500, seed=1
glibc_memchr    time=2569793607 ns  checksum=0x464af4d3c0d93dff
simple_memchr   time=4877482198 ns  checksum=0x464af4d3c0d93dff
memchr2         time=3978928453 ns  checksum=0x464af4d3c0d93dff
memchr_sse42    time=3745261520 ns  checksum=0x464af4d3c0d93dff
repne_scas      time=6229297013 ns  checksum=0x464af4d3c0d93dff
memchr_sse2     time=3180128354 ns  checksum=0x464af4d3c0d93dff
memchr_avx2_simple  time=2455712727 ns  checksum=0x464af4d3c0d93dff
memchr_sse2_bsf  time=3195730838 ns  checksum=0x464af4d3c0d93dff
avx_memchr2     time=3337777212 ns  checksum=0x464af4d3c0d93dff

Estimated throughput (GiB/s):
  glibc_memchr : 413.700
  simple_memchr: 217.966
  memchr2      : 267.189
  memchr_sse42 : 283.858
  repne_scas   : 170.665
  memchr_sse2  : 334.302
  memchr_avx2_simple : 432.919
  memchr_sse2_bsf : 332.670
  avx_memchr2  : 318.513
== zen3, 5900x
buf_size=67108864 bytes, queries=65536, iters=500, seed=1
glibc_memchr    time=1099396528 ns  checksum=0xbcaf2a4dbd1d8250
simple_memchr   time=2547963284 ns  checksum=0xbcaf2a4dbd1d8250
memchr2         time=1653007968 ns  checksum=0xbcaf2a4dbd1d8250
memchr_sse42    time=1665418760 ns  checksum=0xbcaf2a4dbd1d8250
repne_scas      time=3908145697 ns  checksum=0xbcaf2a4dbd1d8250
memchr_sse2     time=1398626496 ns  checksum=0xbcaf2a4dbd1d8250
memchr_avx2_simple  time=1167138372 ns  checksum=0xbcaf2a4dbd1d8250
memchr_sse2_bsf  time=1368162353 ns  checksum=0xbcaf2a4dbd1d8250
avx_memchr2     time=1299098414 ns  checksum=0xbcaf2a4dbd1d8250

Estimated throughput (GiB/s):
  glibc_memchr : 967.007
  simple_memchr: 417.245
  memchr2      : 643.145
  memchr_sse42 : 638.353
  repne_scas   : 272.028
  memchr_sse2  : 760.120
  memchr_avx2_simple : 910.881
  memchr_sse2_bsf : 777.045
  avx_memchr2  : 818.355
== zen4, R7 PRO 7840U,
buf_size=67108864 bytes, queries=65536, iters=500, seed=1
glibc_memchr    time=3803553513 ns  checksum=0xbcb8fc7be3c6406f
simple_memchr   time=10952696318 ns  checksum=0xbcb8fc7be3c6406f
memchr2         time=8785361888 ns  checksum=0xbcb8fc7be3c6406f
memchr_sse42    time=7598771538 ns  checksum=0xbcb8fc7be3c6406f
repne_scas      time=12717865265 ns  checksum=0xbcb8fc7be3c6406f
memchr_sse2     time=6164322122 ns  checksum=0xbcb8fc7be3c6406f
memchr_avx2_simple  time=3814639225 ns  checksum=0xbcb8fc7be3c6406f
memchr_sse2_bsf  time=4727531964 ns  checksum=0xbcb8fc7be3c6406f
avx_memchr2     time=4449310535 ns  checksum=0xbcb8fc7be3c6406f

Estimated throughput (GiB/s):
  glibc_memchr : 279.508
  simple_memchr: 97.065
  memchr2      : 121.011
  memchr_sse42 : 139.907
  repne_scas   : 83.593
  memchr_sse2  : 172.464
  memchr_avx2_simple : 278.696
  memchr_sse2_bsf : 224.879
  avx_memchr2  : 238.941
== zen5, Ryzen 9 9950X 16-Core
buf_size=67108864 bytes, queries=65536, iters=500, seed=1
glibc_memchr    time=928113344 ns  checksum=0xdb57a5f517b2f64c
simple_memchr   time=2674321523 ns  checksum=0xdb57a5f517b2f64c
memchr2         time=1819474786 ns  checksum=0xdb57a5f517b2f64c
memchr_sse42    time=1585872270 ns  checksum=0xdb57a5f517b2f64c
repne_scas      time=2922007094 ns  checksum=0xdb57a5f517b2f64c
memchr_sse2     time=1588992695 ns  checksum=0xdb57a5f517b2f64c
memchr_avx2_simple  time=1162745811 ns  checksum=0xdb57a5f517b2f64c
memchr_sse2_bsf  time=1557985385 ns  checksum=0xdb57a5f517b2f64c
avx_memchr2     time=1299381253 ns  checksum=0xdb57a5f517b2f64c

Estimated throughput (GiB/s):
  glibc_memchr : 1145.468
  simple_memchr: 397.530
  memchr2      : 584.303
  memchr_sse42 : 670.372
  repne_scas   : 363.834
  memchr_sse2  : 669.055
  memchr_avx2_simple : 914.322
  memchr_sse2_bsf : 682.371
  avx_memchr2  : 818.177