One of our Golang applications has a very huge binary size and the size of
the .text segment itself in the elf is approximately *34MB*. The iTLB load
miss reaches about *87%* of all iTLB cache hits.
Is there any advice for big Golang applications to reduce the iTLB cache
miss? Two solutions com
This was an intentional change in
1.8 https://github.com/golang/go/issues/20257#issuecomment-299509391
On Friday, September 17, 2021 at 6:45:13 AM UTC+2 dmo...@synack.com wrote:
> Hi, when using a custom io.ReadCloser nop as body with method POST, PUT,
> PATCH, TRACE or custom then (*http.Reque
rmfr,
What is your data, what is its structure, and what are the access paths and
frequencies?
Your data is unlikely to be a randomly accessed blob of bits. Is there a
set of Pareto access paths that you can use to order your data by access
frequency? You want the most frequently accessed data
how atomic insturction work in golang at x86/amd64,
I think the atomic insturtion will flush the store buffer and invalid queue
of current cpu core,
but I am not sure, does someone know about it?
--
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This is the icache or code - not the data the code is accessing.
> On Sep 17, 2021, at 8:12 AM, peterGo wrote:
>
>
> rmfr,
>
> What is your data, what is its structure, and what are the access paths and
> frequencies?
>
> Your data is unlikely to be a randomly accessed blob of bits. Is the
Hey Andrey,
I tried with 1.17, same issue. I've raised a bug
(https://github.com/golang/go/issues/48439) as it seems to impact all go
commands (not just build).
It's clearly linked to qemu/docker
Thanks!
Remi
On Thursday, September 16, 2021 at 11:28:16 AM UTC-7 Andrey T. wrote:
> Hi Remi,
>
>
Hello everyone, I need help, I often write algorithms on strings, and often
I need such a thing as a *Z algo*, is it possible to add it to a
*'std/strings'* package ?
It can also be used in competitive programming, it is quite a useful thing.
More about Z algo -
https://www.geeksforgeeks.org/z
Oh, thanks for clarifying that. But still, even if transfer encoding will
be chunked, I don't see why it would make up a body of "0\r\n\r\n" if the
nop body wouldn't give away any bytes at all.
On Friday, September 17, 2021 at 7:56:21 AM UTC-3 seank...@gmail.com wrote:
> This was an intentional
All chunks must be prefixed by a chunk length - even if that length is zero.
On Friday, 17 September 2021 at 16:53:07 UTC+1 dmo...@synack.com wrote:
> Oh, thanks for clarifying that. But still, even if transfer encoding will
> be chunked, I don't see why it would make up a body of "0\r\n\r\n" if
Ok, that makes total sense. I'm now using `req.TransferEncoding =
[]string{"identity"}` and this behaviour is suppressed, but of course I
still don't get the Content-Length, which is fair.
Thanks all!
On Fri, Sep 17, 2021 at 2:09 PM Brian Candler wrote:
> All chunks must be prefixed by a chunk
I can create PR with Z algorithm
пятница, 17 сентября 2021 г. в 16:38:41 UTC+1, vl4deee11:
> Hello everyone, I need help, I often write algorithms on strings, and
> often I need such a thing as a *Z algo*, is it possible to add it to a
> *'std/strings'* package ?
> It can also be used in comp
On Fri, Sep 17, 2021 at 8:38 AM vl4deee11 wrote:
>
> Hello everyone, I need help, I often write algorithms on strings, and often I
> need such a thing as a Z algo, is it possible to add it to a 'std/strings'
> package ?
> It can also be used in competitive programming, it is quite a useful thin
Yes, this algorithm is mainly used to quickly find a substring in a string.
O(n+m), where n=len(string), m=len(substring). I can run some tests to
check, and post them here. But I would also like to add the z algorithm
itself, this will be useful mainly for competitive programmers, and it will
On Fri, Sep 17, 2021 at 12:03 PM vl4deee11 wrote:
>
> Yes, this algorithm is mainly used to quickly find a substring in a string.
> O(n+m), where n=len(string), m=len(substring). I can run some tests to check,
> and post them here. But I would also like to add the z algorithm itself, this
> wil
On Fri, Sep 17, 2021 at 6:25 AM xie cui wrote:
>
> how atomic insturction work in golang at x86/amd64,
> I think the atomic insturtion will flush the store buffer and invalid queue
> of current cpu core,
> but I am not sure, does someone know about it?
I assume that you are asking about the syn
Thanks a lot :-D
> This is the icache or code - not the data the code is accessing.
Yes, it is the cache miss of iTLB, i.e. *Instruction* Translation Lookaside
Buffer.
I have tried the https://github.com/facebookincubator/BOLT, but the linker
Golang used seems does not allow `--emit-relocs` o
I think z algo can be third party lib. But i try to optimize strings.Index
with z algo. Later i can show benchmarks. Thanks for your help!
пятница, 17 сентября 2021 г. в 22:07:00 UTC+3, Ian Lance Taylor:
> On Fri, Sep 17, 2021 at 12:03 PM vl4deee11 wrote:
> >
> > Yes, this algorithm is mainly
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