> Normally the pipe size doesn’t need to be very large if the producer and
consumer “costs” are roughly the same. If the producer is costlier than the
consumer than a large buffer does nothing. If the consumer is costlier than
a large buffer only allow the producer to complete sooner. Otherwise,
Normally the pipe size doesn’t need to be very large if the producer and
consumer “costs” are roughly the same. If the producer is costlier than the
consumer than a large buffer does nothing. If the consumer is costlier than a
large buffer only allow the producer to complete sooner. Otherwise, y
Hi,
> That sets the upper limit on how much data a kernel pipe can buffer to 2.5
> GiB. That is not reasonable. It is also an upper limit, not the default size.
> Also, that kernel parameter only existed, AFAIK, in Linux 2.6.34 which was
> released in 2010. Are you really using a Linux kernel t
On Wed, Dec 4, 2024 at 12:33 AM tokers wrote:
> I noticed (*os.File).ReadFrom has supported splice(2) since go/1.21, and
> I'm trying to introduce it to my project. But the performance is not as
> expected, which is slower than the normal io.Copy (buffer size = 1MB). Does
> anyone who knows the r
Hello,
> My understanding is the `zero` variable just provides a unique memory
location, and any type, e.g. byte, would have worked just as well. Is this
right?
Yes.
> Was uintptr choosen for performance reasons? Or to guarantee alignment?
None of the above.
`uintptr` was chosen for being
On Thu, 28 Nov 2024 at 23:36, 'Константин Иванов' via golang-nuts <
golang-nuts@googlegroups.com> wrote:
> Hello.
>
> May be because all zero-size values have the same pointer:
> https://go.dev/play/p/n0dKQFN2EpR
> Because the values have no memory location.
>
I think that's *part* of the story:
Hi,
I noticed (*os.File).ReadFrom has supported splice(2) since go/1.21, and
I'm trying to introduce it to my project. But the performance is not as
expected, which is slower than the normal io.Copy (buffer size = 1MB). Does
anyone who knows the reason?
For using splice(2), I tweaked the param
