H.J. Lu cf2c57526b x86: Set rep_movsb_threshold to 2112 on processors with FSRM ... The glibc memcpy benchmark on Intel Core i7-1065G7 (Ice Lake) showed that REP MOVSB became faster after 2112 bytes: Vector Move REP MOVSB length=2112, align1=0, align2=0: 24.20 24.40 length=2112, align1=1, align2=0: 26.07 23.13 length=2112, align1=0, align2=1: 27.18 28.13 length=2112, align1=1, align2=1: 26.23 25.16 length=2176, align1=0, align2=0: 23.18 22.52 length=2176, align1=2, align2=0: 25.45 22.52 length=2176, align1=0, align2=2: 27.14 27.82 length=2176, align1=2, align2=2: 22.73 25.56 length=2240, align1=0, align2=0: 24.62 24.25 length=2240, align1=3, align2=0: 29.77 27.15 length=2240, align1=0, align2=3: 35.55 29.93 length=2240, align1=3, align2=3: 34.49 25.15 length=2304, align1=0, align2=0: 34.75 26.64 length=2304, align1=4, align2=0: 32.09 22.63 length=2304, align1=0, align2=4: 28.43 31.24 Use REP MOVSB for data size > 2112 bytes in memcpy on processors with fast short REP MOVSB (FSRM). * sysdeps/x86/dl-cacheinfo.h (dl_init_cacheinfo): Set rep_movsb_threshold to 2112 on processors with fast short REP MOVSB (FSRM).		2021-05-03 05:08:22 -07:00
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nptl	nptl: Move pthread_yield into libc, as a compatibility symbol	2021-05-03 09:23:44 +02:00
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pthread	nptl: Move tss_set into libc	2021-05-03 08:18:08 +02:00
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unix	nptl: Move pthread_yield into libc, as a compatibility symbol	2021-05-03 09:23:44 +02:00
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x86	x86: Set rep_movsb_threshold to 2112 on processors with FSRM	2021-05-03 05:08:22 -07:00
x86_64