Pavel Emelyanov wrote:
> Well I think you're right. The structure gains 50% in size... Really too
> much to fight for performance in IPC :)
>
> Thanks for checking this thing.
>
> You may put my Acked-by in the original patch.
>
Cool. Thanks !
P.
> Thanks,
> Pavel
>
--
Pierre Peiffer
-
To
Pierre Peiffer wrote:
> Ok, I have the patch ready, but before sending it, I worry about the size of
> struct ipc_namespace if we mark struct ipc_ids as ___cacheline_aligned
>
> Of course, you we fall into a classical match: performance vs memory size.
>
> As I don't think that I have the kno
Ok, I have the patch ready, but before sending it, I worry about the size of
struct ipc_namespace if we mark struct ipc_ids as ___cacheline_aligned
Of course, you we fall into a classical match: performance vs memory size.
As I don't think that I have the knowledge to decide what we must focu
Pierre Peiffer wrote:
> Hi,
>
> Thanks for reviewing this !
>
> Pavel Emelyanov wrote:
>> Pavel Emelyanov wrote:
>>> Cedric Le Goater wrote:
Pierre Peiffer wrote:
>> [snip]
>>
Pavel, what do you think of it ?
>>> Looks sane, good catch, Pierre.
>>>
>>> But I'd find out whether th
Hi,
Thanks for reviewing this !
Pavel Emelyanov wrote:
> Pavel Emelyanov wrote:
>> Cedric Le Goater wrote:
>>> Pierre Peiffer wrote:
>
> [snip]
>
>>> Pavel, what do you think of it ?
>> Looks sane, good catch, Pierre.
>>
>> But I'd find out whether these three ipc_ids intersect any
>>
Pavel Emelyanov wrote:
> Cedric Le Goater wrote:
>> Pierre Peiffer wrote:
[snip]
>> Pavel, what do you think of it ?
>
> Looks sane, good catch, Pierre.
>
> But I'd find out whether these three ipc_ids intersect any
> cache-line. In other words I'd mark the struct ipc_ids as
> cacheline_a
Cedric Le Goater wrote:
> Pierre Peiffer wrote:
>> Each ipc_namespace contains a table of 3 pointers to struct ipc_ids (3 for
>> msg, sem and shm, structure used to store all ipcs)
>> These 'struct ipc_ids' are dynamically allocated for each icp_namespace as
>> the ipc_namespace itself (for the ini
Pierre Peiffer wrote:
>
> Each ipc_namespace contains a table of 3 pointers to struct ipc_ids (3 for
> msg, sem and shm, structure used to store all ipcs)
> These 'struct ipc_ids' are dynamically allocated for each icp_namespace as
> the ipc_namespace itself (for the init namespace, they are initi
Each ipc_namespace contains a table of 3 pointers to struct ipc_ids (3 for
msg, sem and shm, structure used to store all ipcs)
These 'struct ipc_ids' are dynamically allocated for each icp_namespace as
the ipc_namespace itself (for the init namespace, they are initialized with
pointers to static
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