Brad Fitzpatrick babbd55e5d net/http: fewer allocations in chunkWriter.WriteHeader ... It was unnecessarily cloning and then mutating a map that had a very short lifetime (just that function). No new tests, because they were added in revision 833bf2ef1527 (TestHeaderToWire). The benchmarks below are from the earlier commit, revision 52e3407d. I noticed this inefficiency when reviewing a change Peter Buhr is looking into, which will also use these benchmarks. benchmark old ns/op new ns/op delta BenchmarkServerHandlerTypeLen 12547 12325 -1.77% BenchmarkServerHandlerNoLen 12466 11167 -10.42% BenchmarkServerHandlerNoType 12699 11800 -7.08% BenchmarkServerHandlerNoHeader 11901 9210 -22.61% benchmark old allocs new allocs delta BenchmarkServerHandlerTypeLen 21 20 -4.76% BenchmarkServerHandlerNoLen 20 18 -10.00% BenchmarkServerHandlerNoType 20 18 -10.00% BenchmarkServerHandlerNoHeader 17 13 -23.53% benchmark old bytes new bytes delta BenchmarkServerHandlerTypeLen 1930 1913 -0.88% BenchmarkServerHandlerNoLen 1912 1879 -1.73% BenchmarkServerHandlerNoType 1912 1878 -1.78% BenchmarkServerHandlerNoHeader 1491 1086 -27.16% R=golang-dev, adg CC=golang-dev https://golang.org/cl/8268046		2013-04-02 16:27:23 -07:00
..
archive	archive/tar: remove execute bit from common.go	2013-03-03 08:56:08 +11:00
bufio	bufio: add some tests	2013-03-21 19:59:49 -07:00
builtin	builtin: add linkable-to declarations for iota and nil	2013-03-26 11:05:06 -07:00
bytes	runtime: Implement faster equals for strings and bytes.	2013-04-02 16:26:15 -07:00
compress	compress/gzip: add Writer.Flush to call flate.Writer's Flush	2013-04-02 09:07:43 -07:00
container	container/heap: fix int overflow bug	2013-03-04 10:25:21 -05:00
crypto	crypto/rsa: don't correct private exponent unless needed.	2013-03-25 19:08:29 -04:00
database/sql	database/sql: optimized []byte copy + []byte(nil) -> *interface fix	2013-03-25 17:43:30 -07:00
debug	debug/elf: repair GNU version symbols.	2013-03-22 01:27:55 +01:00
encoding	build: remove dead code	2013-03-22 17:28:22 -04:00
errors
expvar	all: make tests able to run multiple times.	2013-01-27 00:24:09 +01:00
flag	all: make tests able to run multiple times.	2013-01-27 00:24:09 +01:00
fmt	all: Skip AllocsPerRun tests if GOMAXPROCS>1.	2013-03-06 15:52:32 -08:00
go	go/printer: use strings.Split instead of specialized code	2013-03-28 15:47:39 -07:00
hash	build: update assembly variable names for vet	2013-03-22 12:57:55 -04:00
html	build: remove dead code	2013-03-22 17:28:22 -04:00
image	image/gif: make test repeatable	2013-03-26 16:20:17 +11:00
index/suffixarray
io	all: remove now-unnecessary unreachable panics	2013-03-11 14:16:55 -07:00
log	log/syslog: fix race in test between channel close and accept.	2013-02-28 07:48:16 +01:00
math	math: make Hypot special cases look like others	2013-03-25 17:01:40 -04:00
mime	src/pkg: fixed various typos	2013-03-20 16:32:37 -07:00
net	net/http: fewer allocations in chunkWriter.WriteHeader	2013-04-02 16:27:23 -07:00
os	os/exec, syscall: fix tests to pass when GOGCTRACE=1 is set	2013-03-30 09:22:11 -07:00
path	all: Skip AllocsPerRun tests if GOMAXPROCS>1.	2013-03-06 15:52:32 -08:00
reflect	reflect: add garbage collection info in ChanOf, MapOf, PtrTo, SliceOf	2013-03-26 11:50:29 -07:00
regexp	regexp: identify that submatch is also known as capturing group	2013-03-11 16:23:06 -07:00
runtime	runtime: Implement faster equals for strings and bytes.	2013-04-02 16:26:15 -07:00
sort	sort: be consistent when describing "less: function in the multiKeys example	2013-04-02 10:25:02 -07:00
strconv	build: remove dead code	2013-03-22 17:28:22 -04:00
strings	bytes,strings: remove user name from BUG in comment	2013-03-19 15:04:18 -07:00
sync	sync/atomic: make unaligned 64-bit atomic operation panic on ARM	2013-04-01 14:34:03 -07:00
syscall	os/exec, syscall: fix tests to pass when GOGCTRACE=1 is set	2013-03-30 09:22:11 -07:00
testing	testing: document that Log and Logf do not usually produce output	2013-04-01 15:17:00 -07:00
text	text/template: fix bug in evaluating a chain starting with a function.	2013-03-27 16:31:14 -07:00
time	all: Skip AllocsPerRun tests if GOMAXPROCS>1.	2013-03-06 15:52:32 -08:00
unicode	unicode: modify a comment to the convention format.	2013-03-19 14:47:41 -04:00
unsafe	unsafe: fix a typo	2012-10-19 16:35:15 +11:00