- On Jun 27, 2015, at 12:25 PM, Andy Lutomirski l...@amacapital.net wrote:
> Let me try to summarize some of the approaches with their pros and cons:
>
I can try summarizing a desiderata that I gather from this
thread so far:
- *very fast* accesses for per-cpu push/pop, per-cpu lock
acqui
Let me try to summarize some of the approaches with their pros and cons:
--- percpu segment ---
This is probably the simplest and might make sense regardless.
cmpxchg can be used to do an atomic push onto a linked list. I think
that unlocked cmpxchg16b can be used to get an atomic pop. (You'd
h
On Thu, Jun 25, 2015 at 6:15 PM, Mathieu Desnoyers
wrote:
> - On Jun 24, 2015, at 10:54 PM, Paul Turner p...@google.com wrote:
>
>> On Wed, Jun 24, 2015 at 5:07 PM, Andy Lutomirski wrote:
>>> On Wed, Jun 24, 2015 at 3:26 PM, Paul Turner wrote:
This is a fairly small series demonstrating
- On Jun 24, 2015, at 10:54 PM, Paul Turner p...@google.com wrote:
> On Wed, Jun 24, 2015 at 5:07 PM, Andy Lutomirski wrote:
>> On Wed, Jun 24, 2015 at 3:26 PM, Paul Turner wrote:
>>> This is a fairly small series demonstrating a feature we've found to be
>>> quite
>>> powerful in practice,
On Wed, Jun 24, 2015 at 5:07 PM, Andy Lutomirski wrote:
> On Wed, Jun 24, 2015 at 3:26 PM, Paul Turner wrote:
>> This is a fairly small series demonstrating a feature we've found to be quite
>> powerful in practice, "restartable sequences".
>>
>
> On an extremely short glance, I'm starting to thi
On Wed, Jun 24, 2015 at 3:26 PM, Paul Turner wrote:
> This is a fairly small series demonstrating a feature we've found to be quite
> powerful in practice, "restartable sequences".
>
On an extremely short glance, I'm starting to think that the right
approach, at least for x86, is to implement per
This is a fairly small series demonstrating a feature we've found to be quite
powerful in practice, "restartable sequences".
Most simply: these sequences comprise small snippets of user-code that are
guaranteed to be (effectively) executed serially, with support for restart (or
other handling) in
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