ComputerSurge/bind9
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33 Commits
Author SHA1 Message Date
Witold Kręcicki 91d5c3313c Bucketed statistics. 
Even though statistics are lockless they still use atomics which
might cause contention. Split stats counters into buckets, sharded
by an artificial thread identifier, to increase throughput.
 2020-02-07 08:40:25 +01:00
Ondřej Surý fbf9856f43 Add isc_refcount_destroy() as appropriate 2020-01-14 13:12:13 +01:00
Ondřej Surý b4df5a6ecb Avoid an extra atomic_load() call 2019-11-06 11:30:36 +01:00
Diego FronzaandOndřej Surý 66fe8627de Added TCP high-water statistics variable 
This variable will report the maximum number of simultaneous tcp clients
that BIND has served while running.

It can be verified by running rndc status, then inspect "tcp high-water:
count", or by generating statistics file, rndc stats, then inspect the
line with "TCP connection high-water" text.

The tcp-highwater variable is atomically updated based on an existing
tcp-quota system handled in ns/client.c.
 2019-11-06 09:18:27 +01:00
Diego FronzaandOndřej Surý a544e2e300 Add functions for collecting high-water counters 
Add {isc,ns}_stats_{update_if_greater,get_counter}() functions that
are used to set and collect high-water type of statistics.
 2019-11-06 09:11:20 +01:00
Diego FronzaandOndřej Surý eb5611a770 Change the isc_stat_t type to isc__atomic_statcounter_t 
The isc_stat_t type was too similar to isc_stats_t type, so the name was
changed to something more distinguishable.
 2019-11-06 09:09:45 +01:00
Ondřej SurýandWitold Kręcicki f1471bc2e1 lib/isc/stats.c: Use ->references instead of ->refs 2019-07-09 16:11:14 +02:00
Witold Kręcicki 5aeb99786e Properly initialize all atomic variables 2019-07-09 16:09:36 +02:00
Michał KępieńandOndřej Surý e21103f2d3 Fix statistics for x86 Windows builds 
Using atomic_int_fast64_t variables with atomic functions on x86 does
not cause Visual Studio to report build errors, but such operations
yield useless results.  Since the isc_stat_t type is unconditionally
typedef'd to atomic_int_fast64_t, any code performing atomic operations
on isc_stat_t variables is broken in x86 Windows builds.  Fix by using
the atomic_int_fast32_t type for isc_stat_t in x86 Windows builds.
 2019-06-20 17:49:25 +02:00
Evan Hunt 4e5edb35e4 simplify the isc_stat structure to take avantage of atomics 2019-05-06 12:53:45 -07:00
Ondřej Surý 78d0cb0a7d Use coccinelle to remove explicit '#include <config.h>' from the source files 2019-03-08 15:15:05 +01:00
Witold Kręcicki 929ea7c2c4 - Make isc_mutex_destroy return void 
- Make isc_mutexblock_init/destroy return void
- Minor cleanups
 2018-11-22 11:52:08 +00:00
Ondřej SurýandWitold Kręcicki 2f3eee5a4f isc_mutex_init returns 'void' 2018-11-22 11:51:49 +00:00
Ondřej Surý e9e55cbd03 Remove isc_atomic usage from rwlock.c and stats.c 2018-08-28 12:15:39 +02:00
Ondřej Surý cb6a185c69 Replace custom isc_u?intNN_t types with C99 u?intNN_t types 2018-08-08 09:37:28 +02:00
Ondřej Surý 55a10b7acd Remove $Id markers, Principal Author and Reviewed tags from the full source tree 2018-05-11 13:17:46 +02:00
Ondřej Surý 843d389661 Update license headers to not include years in copyright in all applicable files 2018-02-23 10:12:02 +01:00
Tinderbox User ffbe6b9537 update copyright notice / whitespace 2017-09-19 23:46:23 +00:00
Mukund Sivaraman 404c9b1c53 Use C11's stdatomic.h instead of isc_atomic where available 2017-09-19 15:43:45 +05:30
Mark Andrews 0c27b3fe77 4401. [misc] Change LICENSE to MPL 2.0. 2016-06-27 14:56:38 +10:00
Evan Hunt 821ff5e8fa [master] isc_atomic_storeq()/stats improvements 
4248.	[func]		Add an isc_atomic_storeq() function, use it in
			stats counters to improve performance.
			[RT #39972] [RT #39979]
 2015-10-28 22:19:18 -07:00
Tinderbox User 3d787a1213 update copyright notice / whitespace 2015-03-02 23:45:21 +00:00
Mukund Sivaraman 10dd5f62f2 Add support for Valgrind's helgrind tool (#38706) 
Also fix one locking issue that helgrind found: Maintain stats->lock
while stats->reference is used.
 2015-03-02 13:42:20 +05:30
Tinderbox User 431a83fb29 update copyright notice 2014-01-09 23:46:35 +00:00
Evan Hunt e851ea8260 [master] replace memcpy() with memmove(). 
3698.	[cleanup]	Replaced all uses of memcpy() with memmove().
			[RT #35120]
 2014-01-08 16:39:05 -08:00
Mark Andrews 2bdfb330af update copyrights 2013-12-05 15:04:53 +11:00
Mark Andrews c3c8823fed 3681. [port] Update the Windows build system to support feature 
selection and WIN64 builds.  This is a work in
                        progress. [RT #34160]
 2013-12-04 12:47:23 +11:00
Tinderbox User 633c5dc507 update copyright notice 2012-05-14 23:45:48 +00:00
Evan Hunt dd2a0a6d2d Merge statistics code (ATT SoW, rt24117) 
This includes the following changes:

3326.	[func]		Added task list statistics: task model, worker
			threads, quantum, tasks running, tasks ready.
			[RT #27678]

3325.	[func]		Report cache statistics: memory use, number of
			nodes, number of hash buckets, hit and miss counts.
			[RT #27056]

3324.	[test]		Add better tests for ADB stats [RT #27057]

3323.	[func]		Report the number of buckets the resolver is using.
			[RT #27020]

3322.	[func]		Monitor the number of active TCP and UDP dispatches.
			[RT #27055]

3321.	[func]		Monitor the number of recursive fetches and the
			number of open sockets, and report these values in
			the statistics channel. [RT #27054]

3320.	[func]		Added support for monitoring of recursing client
			count. [RT #27009]

3319.	[func]		Added support for monitoring of ADB entry count and
			hash size. [RT #27057]
 2012-05-14 10:06:05 -07:00
Tinderbox User 5fa46bc916 update copyright notice 2012-03-10 23:45:53 +00:00
Mark Andrews 28a8f5b0de set $Id$ 2012-03-08 00:21:15 +11:00
Automatic Updater 39a8abdb83 update copyright notice 2009-01-27 23:47:54 +00:00
Tatuya JINMEI 神明達哉 d9059b0c38 2537. [func] Added more statistics counters including those on socket 
I/O events and query RTT histograms.  [RT #18802]
 2009-01-27 22:30:00 +00:00