hi,
unpacking files is kinda slow, probably i'm doing something wrong.
below code is about half the speed of gnu zcat on my os x machine.
why?
why do i need to .dup the buffer?
can i get rid of the casts?
the chunk size has only a marginal influence.
https://github.com/yannick/zcatd
import
On Friday, 7 August 2015 at 08:50:11 UTC, Daniel Kozák wrote:
ldc[2] -O -release -boundscheck=off -singleobj app.d
ldc 0.15.2 beta2
2.86s user 0.55s system 77% cpu 4.392 total
v2.068-devel-8f81ffc
2.86s user 0.67s system 78% cpu 4.476 total
v2.067
2.88s user 0.67s system 78% cpu 4.529
On Fri, 07 Aug 2015 08:42:45 +
yawniek dl...@srtnwz.com wrote:
On Friday, 7 August 2015 at 08:24:11 UTC, Daniel Kozák wrote:
can you try it with ldc?
ldc[2] -O -release -boundscheck=off -singleobj app.d
ldc 0.15.2 beta2
2.86s user 0.55s system 77% cpu 4.392 total
On Friday, 7 August 2015 at 07:29:15 UTC, Daniel Kozák wrote:
Which compiler and version. There has been some performance
problem with IO on OSX, it should be fixed in 2.068 release
i'm on master. v2.068-devel-8f81ffc
also changed file read mode to rb.
i don't understand why the program
On Fri, 07 Aug 2015 08:13:01 +
yawniek dl...@srtnwz.com wrote:
On Friday, 7 August 2015 at 08:05:01 UTC, Daniel Kozák wrote:
import
std.zlib,
std.file,
std.stdio,
std.conv;
void main(string[] args)
{
auto f = File(args[1], rb);
auto uncompressor = new
On Fri, 07 Aug 2015 08:13:01 +
yawniek dl...@srtnwz.com wrote:
On Friday, 7 August 2015 at 08:05:01 UTC, Daniel Kozák wrote:
import
std.zlib,
std.file,
std.stdio,
std.conv;
void main(string[] args)
{
auto f = File(args[1], rb);
auto uncompressor = new
On Fri, 07 Aug 2015 07:19:43 +
yawniek via Digitalmars-d-learn digitalmars-d-learn@puremagic.com
wrote:
hi,
unpacking files is kinda slow, probably i'm doing something wrong.
below code is about half the speed of gnu zcat on my os x machine.
why?
why do i need to .dup the buffer?
On Fri, 07 Aug 2015 07:36:39 +
yawniek dl...@srtnwz.com wrote:
On Friday, 7 August 2015 at 07:29:15 UTC, Daniel Kozák wrote:
Which compiler and version. There has been some performance
problem with IO on OSX, it should be fixed in 2.068 release
i'm on master. v2.068-devel-8f81ffc
On Fri, 07 Aug 2015 07:19:43 +
yawniek dl...@srtnwz.com wrote:
hi,
unpacking files is kinda slow, probably i'm doing something wrong.
below code is about half the speed of gnu zcat on my os x machine.
why?
why do i need to .dup the buffer?
It depends. In your case you don't need
On Friday, 7 August 2015 at 07:43:25 UTC, Daniel Kozák wrote:
i don't understand why the program crashes when i do not do
the .dup
This is weird. I would say it should not crash
exactely. but try it yourself.
the fastest version i could come up so far is below.
std.conv slows it down.
going
On Fri, 07 Aug 2015 08:01:27 +
yawniek dl...@srtnwz.com wrote:
On Friday, 7 August 2015 at 07:48:25 UTC, yawniek wrote:
On Friday, 7 August 2015 at 07:43:25 UTC, Daniel Kozák wrote:
the fastest version i could come up so far is below.
std.conv slows it down.
going from a 4kb to a
On Friday, 7 August 2015 at 07:48:25 UTC, yawniek wrote:
On Friday, 7 August 2015 at 07:43:25 UTC, Daniel Kozák wrote:
the fastest version i could come up so far is below.
std.conv slows it down.
going from a 4kb to a 4mb buffer helped. now i'm within 30% of
gzcat's performance.
ok maybe not,
On Fri, 7 Aug 2015 09:43:25 +0200
Daniel Kozák ko...@dlang.cz wrote:
On Fri, 07 Aug 2015 07:36:39 +
yawniek dl...@srtnwz.com wrote:
On Friday, 7 August 2015 at 07:29:15 UTC, Daniel Kozák wrote:
Which compiler and version. There has been some performance
problem with IO on OSX,
On Friday, 7 August 2015 at 08:05:01 UTC, Daniel Kozák wrote:
import
std.zlib,
std.file,
std.stdio,
std.conv;
void main(string[] args)
{
auto f = File(args[1], rb);
auto uncompressor = new UnCompress(HeaderFormat.gzip);
foreach (buffer; f.byChunk(4096))
{
auto
On Friday, 7 August 2015 at 08:24:11 UTC, Daniel Kozák wrote:
can you try it with ldc?
ldc[2] -O -release -boundscheck=off -singleobj app.d
ldc 0.15.2 beta2
2.86s user 0.55s system 77% cpu 4.392 total
v2.068-devel-8f81ffc
2.86s user 0.67s system 78% cpu 4.476 total
v2.067
2.88s user
On Friday, 7 August 2015 at 09:12:32 UTC, yawniek wrote:
On Friday, 7 August 2015 at 08:50:11 UTC, Daniel Kozák wrote:
ldc[2] -O -release -boundscheck=off -singleobj app.d
ldc 0.15.2 beta2
2.86s user 0.55s system 77% cpu 4.392 total
v2.068-devel-8f81ffc
2.86s user 0.67s system 78% cpu
On Friday, 7 August 2015 at 11:45:00 UTC, Daniel Kozak wrote:
On Friday, 7 August 2015 at 09:12:32 UTC, yawniek wrote:
[...]
Can you try it without write operation (comment out all write)?
And than try it without uncompression?
// without compression:
void main(string[] args)
{
auto f
On Fri, 07 Aug 2015 12:29:26 +
yawniek dl...@srtnwz.com wrote:
On Friday, 7 August 2015 at 11:45:00 UTC, Daniel Kozak wrote:
On Friday, 7 August 2015 at 09:12:32 UTC, yawniek wrote:
[...]
Can you try it without write operation (comment out all write)?
And than try it without
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