Wireshark mailing list archives
Re: Profiling results with optimized function ws_mempbrk_sse42() ws
From: Anders Broman <anders.broman () ericsson com>
Date: Wed, 4 Jun 2014 11:24:59 +0000
Hi, I did a test with static inline const guint8* guint8_pbrk(const guint8* haystack, size_t haystacklen _U_, const guint8 *needles, guchar *found_needle) { const guint8 *result = (const guint8 *)strpbrk(haystack, needles); if (result && found_needle) *found_needle = *result; return result; } Which seems to give as good results on Ubuntu 13.10, it ends up using __strpbrk_sse42 (libc-2.17.so: strcspn-c.c, ...) ==29458== ==29458== Events : Ir ==29458== Collected : 21130728727 ==29458== ==29458== I refs: 21,130,728,727 Load time in WS 0:19.300 From: wireshark-dev-bounces () wireshark org [mailto:wireshark-dev-bounces () wireshark org] On Behalf Of Anders Broman Sent: den 2 juni 2014 08:36 To: wireshark-dev () wireshark org Subject: [Wireshark-dev] Profileing results with optimized function ws_mempbrk_sse42() Hi, I think this looks very good. With filter 22,212,643,979 reduced to 21,418,572,385. Could we use something similar for format_text() and Address equal functions? Other string functions? Regards Anders
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Description: callgrind.out.strpbrk.29458.bz2
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Current thread:
- Re: Profiling results with optimized function ws_mempbrk_sse42() ws Anders Broman (Jun 04)
- Re: Profiling results with optimized function ws_mempbrk_sse42() ws Jakub Zawadzki (Jun 04)
- Re: Profiling results with optimized function ws_mempbrk_sse42() ws Anders Broman (Jun 04)
- Re: Profiling results with optimized function ws_mempbrk_sse42() ws Jakub Zawadzki (Jun 04)