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haproxy/include/proto
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Willy Tarreau 1208266356 OPTIM: poll: restore polling after a poll/stop/want sequence 
If a file descriptor is being polled, and it stopped (eg: buffer full
or end of response), then re-enabled, currently what happens is that
the polling is disabled, then the fd is enabled in speculative mode,
an I/O attempt is made, it loses (otherwise the FD would surely not
have been polled), and the polled is enabled again.

This is too bad, especially with HTTP keep-alive on the server side
where all operations are performed at once before going back to the
poll loop.

Now we improve the behaviour by ensuring that if an fd is still being
polled, when it's enabled after having been disabled, we re-enable the
polling. Doing so saves a number of syscalls and useless wakeups, and
results in a significant performance gain on HTTP keep-alive. A 11%
increase has been observed on the HTTP request rate in keep-alive
thanks to this.

It could be considered as a bug fix, but there was no harm with the
current behaviour, except extra syscalls.
2013-12-27 20:18:52 +01:00
..
acl.h MINOR: acl/pattern: use types different from int to clarify who does what. 2013-12-02 23:31:33 +01:00
arg.h MAJOR: sample: maintain a per-proxy list of the fetch args to resolve 2013-04-03 02:13:02 +02:00
auth.h MINOR: acl/pattern: use types different from int to clarify who does what. 2013-12-02 23:31:33 +01:00
backend.h REORG/MAJOR: use "struct channel" instead of "struct buffer" 2012-09-02 21:54:55 +02:00
channel.h BUG/MAJOR: http: always ensure response buffer has some room for a response 2013-06-08 13:14:17 +02:00
checks.h MEDIUM: Paramatise functions over the check of a server 2013-11-19 09:35:54 +01:00
compression.h MINOR: compression: CPU usage limit 2012-11-21 02:15:16 +01:00
connection.h MEDIUM: connection: inform si_alloc_conn() whether existing conn is OK or not 2013-12-16 02:23:53 +01:00
cttproxy.h [MEDIUM] check for cttproxy support when required 2007-03-24 17:24:39 +01:00
dumpstats.h MEDIUM: map: dynamic manipulation of maps 2013-12-12 15:58:30 +01:00
fd.h OPTIM: poll: restore polling after a poll/stop/want sequence 2013-12-27 20:18:52 +01:00
freq_ctr.h [MINOR] freq_ctr: add new types and functions for periods different from 1s 2010-08-10 14:01:09 +02:00
frontend.h REORG: connection: move the PROXY protocol management to connection.c 2012-10-05 00:32:33 +02:00
hdr_idx.h OPTIM/MINOR: move the hdr_idx pools out of the proxy struct 2011-10-24 18:15:04 +02:00
lb_chash.h [MEDIUM] backend: implement consistent hashing variation 2009-10-09 07:17:58 +02:00
lb_fas.h MEDIUM: backend: add the 'first' balancing algorithm 2012-02-21 22:27:27 +01:00
lb_fwlc.h [CLEANUP] backend: move LB algos to individual files 2009-10-01 11:19:37 +02:00
lb_fwrr.h [CLEANUP] backend: move LB algos to individual files 2009-10-01 11:19:37 +02:00
lb_map.h [MINOR] lb_map: reorder code in order to ease integration of new hash functions 2009-10-01 21:11:15 +02:00
listener.h CLEANUP: fix missing include <string.h> in proto/listener.h 2013-06-14 19:52:17 +02:00
log.h MINOR: log: indicate it when some unreliable sample fetches are logged 2013-04-03 02:12:56 +02:00
map.h MINOR: map: export parse output sample functions 2013-12-12 15:44:05 +01:00
obj_type.h MINOR: obj: introduce a new type appctx 2013-12-09 15:40:22 +01:00
pattern.h MINOR: pattern: add function to lookup a specific entry in pattern list 2013-12-12 15:50:01 +01:00
payload.h MINOR: payload: split smp_fetch_rdp_cookie() 2013-08-01 21:17:13 +02:00
peers.h [CLEANUP] peers.h: fix declarations 2011-06-18 20:27:19 +02:00
pipe.h [MEDIUM] introduce pipe pools 2009-01-25 13:49:53 +01:00
port_range.h [MEDIUM] add support for binding to source port ranges during connect 2009-06-10 12:23:32 +02:00
proto_http.h MINOR: http: switch the http state to an enum 2013-12-09 16:06:22 +01:00
proto_tcp.h BUG/MINOR: config: report the correct track-sc number in tcp-rules 2013-12-02 23:31:32 +01:00
proto_uxst.h BUG/MEDIUM: stream_interface: restore get_src/get_dst 2012-05-11 16:48:10 +02:00
protocol.h REORG: split "protocols" files into protocol and listener 2012-09-15 22:29:32 +02:00
proxy.h REORG: split "protocols" files into protocol and listener 2012-09-15 22:29:32 +02:00
queue.h BUG/MEDIUM: zero-weight servers must not dequeue requests from the backend 2012-01-20 16:18:53 +01:00
raw_sock.h REORG: connection: rename the data layer the "transport layer" 2012-10-04 22:26:09 +02:00
sample.h MINOR: sample: make sample_parse_expr() use memprintf() to report parse errors 2013-12-12 23:16:54 +01:00
server.h BUG/MINOR: stats: correctly report throttle rate of low weight servers 2013-12-16 18:04:57 +01:00
session.h MINOR: session: add a simple function to retrieve a session from a task 2013-12-09 15:40:21 +01:00
shctx.h MINOR: ssl: Setting global tune.ssl.cachesize value to 0 disables SSL session cache. 2012-12-28 14:48:13 +01:00
signal.h CLEANUP: includes: fix includes for a number of users of fd.h 2012-09-03 20:49:14 +02:00
ssl_sock.h MEDIUM: log: report SSL ciphers and version in logs using logformat %sslc/%sslv 2012-10-12 20:48:51 +02:00
stick_table.h MEDIUM: stick-tables: flush old entries upon soft-stop 2013-09-04 17:54:01 +02:00
stream_interface.h MEDIUM: stream-int: implement a very simplistic idle connection manager 2013-12-17 00:00:28 +01:00
task.h [MAJOR] proxy: finally get rid of maintain_proxies() 2011-07-25 16:33:49 +02:00
template.h [CLEANUP] included common/version.h everywhere 2006-06-29 18:54:54 +02:00