I have included a few important microbenchmarks,
but the overall intent is to have mostly end-to-end
benchmarks timing real world operations.
The jsondata.go file is a summary of agl's
activity in various open source repositories.
It gets used as test data for many of the benchmarks.
Everything links into one binary (even the test data)
so that it is easy to run the benchmarks on many
computers: there is just one file to copy around.
R=golang-dev, r, bradfitz, adg, r
CC=golang-dev
https://golang.org/cl/5484071
Some tests are significantly faster (50%), a few are slower (up to 30%).
Fannkuch is confusing: parallel code is a little slower for gc, non-parallel and all gccgo runs are faster.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4830058
Interesting comparisons between old and new machine,
and relationship between gccgo and gc.
R=golang-dev, rsc1
CC=golang-dev
https://golang.org/cl/4430045
- Skip the gccgo tests if we don't have it
- Add -lm so nbody.c will compile
- Pass 2098 to the meteor test (cf. the shootout site)
R=rsc, r, iant
CC=golang-dev
https://golang.org/cl/3619042
Changed all uses of bytes.Add (aside from those testing bytes.Add) to append(a, b...).
Also ran "gofmt -s" and made use of copy([]byte, string) in the fasta benchmark.
R=golang-dev, r, r2
CC=golang-dev
https://golang.org/cl/3302042
I tried adding a Scale method to big.Int and it didn't make any noticeable
difference, so I'm removing my TODO.
Also got rid of a few obvious allocations that I missed earlier for a modest
improvement (~5%).
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/2711043
- renamed Len -> BitLen, simplified implementation
- renamed old Div, Mod, DivMod -> Que, Rem, QuoRem
- implemented Div, Mod, DivMod (Euclidian definition, more
useful in a mathematical context)
- fixed a bug in Exp (-0 was possible)
- added extra tests to check normalized results everywhere
- uniformly set Int.neg flag at the end of computations
- minor cosmetic cleanups
- ran all tests
R=rsc
CC=golang-dev
https://golang.org/cl/1091041
- fixed a couple of bugs in the process
(shift right was incorrect for negative numbers)
- added more tests and made some tests more robust
- changed pidigits back to using shifts to multiply
by 2 instead of add
This improves pidigit -s -n 10000 by approx. 5%:
user 0m6.496s (old)
user 0m6.156s (new)
R=rsc
CC=golang-dev
https://golang.org/cl/963044
parsing and printing to new syntax.
Use -oldparser to parse the old syntax,
use -oldprinter to print the old syntax.
2) Change default gofmt formatting settings
to use tabs for indentation only and to use
spaces for alignment. This will make the code
alignment insensitive to an editor's tabwidth.
Use -spaces=false to use tabs for alignment.
3) Manually changed src/exp/parser/parser_test.go
so that it doesn't try to parse the parser's
source files using the old syntax (they have
new syntax now).
4) gofmt -w src misc test/bench
5th and last set of files.
R=rsc
CC=golang-dev
https://golang.org/cl/180050
This change removes the necessity to have GOBIN in $PATH,
and also doesn't assume that the build is being run from
$GOROOT/src. This is a minimal set of necessary changes
to get Go to build happily from the FreeBSD ports
collection.
R=rsc
CC=golang-dev
https://golang.org/cl/171044
- remove use of implicit string concatenation
- these appear to be the only files correctly compiling under test
that used implicit string concatenation
R=rsc
https://golang.org/cl/172043
the bash scripts and makefiles for building go didn't take into account
the fact $GOROOT / $GOBIN could both be directories containing whitespaces,
and was not possible to build it in such a situation.
this commit adjusts the various makefiles/scripts to make it aware of that
possibility, and now it builds successfully when using a path with whitespaces
as well.
Fixes#115.
R=rsc, dsymonds1
https://golang.org/cl/157067
* reverse-complement: port C algorithm to Go
saves 30% on my MacBook Pro and makes it a fairer comparison.
* test reverse-complement with and without GC (another 15%)
* revise timing.sh to work on more systems
* avoid two glibcisms in fasta.c
R=r
https://golang.org/cl/156110
