42f4e00617
Switched from using timestamps to RTT estimates when performing TCP receive buffer auto resizing, as not all hosts support / enable TCP timestamps. Disabled reset of receive buffer auto scaling when not in bulk receive mode, which gives an extra 20% performance increase. Also extracted auto resizing to a common method shared between standard and fastpath modules. With this AWS S3 downloads at ~17ms latency on a 1Gbps connection jump from ~3MB/s to ~100MB/s using the default settings. Reviewed by: lstewart, gnn MFC after: 2 weeks Relnotes: Yes Sponsored by: Multiplay Differential Revision: https://reviews.freebsd.org/D9668
74 lines
3.0 KiB
C
74 lines
3.0 KiB
C
/*-
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* Copyright (c) 2013 Mark Johnston <markj@FreeBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_IN_KDTRACE_H_
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#define _SYS_IN_KDTRACE_H_
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#define IP_PROBE(probe, arg0, arg1, arg2, arg3, arg4, arg5) \
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SDT_PROBE6(ip, , , probe, arg0, arg1, arg2, arg3, arg4, arg5)
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#define UDP_PROBE(probe, arg0, arg1, arg2, arg3, arg4) \
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SDT_PROBE5(udp, , , probe, arg0, arg1, arg2, arg3, arg4)
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#define TCP_PROBE1(probe, arg0) \
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SDT_PROBE1(tcp, , , probe, arg0)
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#define TCP_PROBE2(probe, arg0, arg1) \
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SDT_PROBE2(tcp, , , probe, arg0, arg1)
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#define TCP_PROBE3(probe, arg0, arg1, arg2) \
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SDT_PROBE3(tcp, , , probe, arg0, arg1, arg2)
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#define TCP_PROBE4(probe, arg0, arg1, arg2, arg3) \
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SDT_PROBE4(tcp, , , probe, arg0, arg1, arg2, arg3)
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#define TCP_PROBE5(probe, arg0, arg1, arg2, arg3, arg4) \
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SDT_PROBE5(tcp, , , probe, arg0, arg1, arg2, arg3, arg4)
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#define TCP_PROBE6(probe, arg0, arg1, arg2, arg3, arg4, arg5) \
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SDT_PROBE6(tcp, , , probe, arg0, arg1, arg2, arg3, arg4, arg5)
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SDT_PROVIDER_DECLARE(ip);
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SDT_PROVIDER_DECLARE(tcp);
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SDT_PROVIDER_DECLARE(udp);
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SDT_PROBE_DECLARE(ip, , , receive);
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SDT_PROBE_DECLARE(ip, , , send);
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SDT_PROBE_DECLARE(tcp, , , accept__established);
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SDT_PROBE_DECLARE(tcp, , , accept__refused);
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SDT_PROBE_DECLARE(tcp, , , connect__established);
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SDT_PROBE_DECLARE(tcp, , , connect__refused);
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SDT_PROBE_DECLARE(tcp, , , connect__request);
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SDT_PROBE_DECLARE(tcp, , , receive);
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SDT_PROBE_DECLARE(tcp, , , send);
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SDT_PROBE_DECLARE(tcp, , , siftr);
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SDT_PROBE_DECLARE(tcp, , , state__change);
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SDT_PROBE_DECLARE(tcp, , , debug__input);
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SDT_PROBE_DECLARE(tcp, , , debug__output);
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SDT_PROBE_DECLARE(tcp, , , debug__user);
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SDT_PROBE_DECLARE(tcp, , , debug__drop);
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SDT_PROBE_DECLARE(tcp, , , receive__autoresize);
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SDT_PROBE_DECLARE(udp, , , receive);
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SDT_PROBE_DECLARE(udp, , , send);
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#endif
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