On Sat, 2015-07-18 at 02:40 +, Mathieu Desnoyers wrote:
> - On Jul 17, 2015, at 7:44 PM, Tom Zanussi tom.zanu...@linux.intel.com
> wrote:
>
> > On Fri, 2015-07-17 at 15:48 +, Mathieu Desnoyers wrote:
> >> - On Jul 16, 2015, at 9:35 PM, Tom Zanussi tom.zanu...@linux.intel.com
> >>
- On Jul 17, 2015, at 7:44 PM, Tom Zanussi tom.zanu...@linux.intel.com
wrote:
> On Fri, 2015-07-17 at 15:48 +, Mathieu Desnoyers wrote:
>> - On Jul 16, 2015, at 9:35 PM, Tom Zanussi tom.zanu...@linux.intel.com
>> wrote:
>>
>> > Hi Mathieu,
>> >
>> > On Thu, 2015-07-16 at 23:25 +
On Fri, 2015-07-17 at 15:48 +, Mathieu Desnoyers wrote:
> - On Jul 16, 2015, at 9:35 PM, Tom Zanussi tom.zanu...@linux.intel.com
> wrote:
>
> > Hi Mathieu,
> >
> > On Thu, 2015-07-16 at 23:25 +, Mathieu Desnoyers wrote:
> >> * Tom Zanussi wrote:
> >> >> Add tracing_map, a special-pur
- On Jul 16, 2015, at 9:35 PM, Tom Zanussi tom.zanu...@linux.intel.com
wrote:
> Hi Mathieu,
>
> On Thu, 2015-07-16 at 23:25 +, Mathieu Desnoyers wrote:
>> * Tom Zanussi wrote:
>> >> Add tracing_map, a special-purpose lock-free map for tracing.
>> >>
>> >> tracing_map is designed to aggr
On Fri, 2015-07-17 at 00:32 +0200, Peter Zijlstra wrote:
> On Thu, Jul 16, 2015 at 04:41:45PM -0500, Tom Zanussi wrote:
> > On Thu, 2015-07-16 at 19:49 +0200, Peter Zijlstra wrote:
> > > On Thu, Jul 16, 2015 at 12:22:40PM -0500, Tom Zanussi wrote:
> > > > + for (i = 0; i < elt->map->n_fields;
Hi Mathieu,
On Thu, 2015-07-16 at 23:25 +, Mathieu Desnoyers wrote:
> * Tom Zanussi wrote:
> >> Add tracing_map, a special-purpose lock-free map for tracing.
> >>
> >> tracing_map is designed to aggregate or 'sum' one or more values
> >> associated with a specific object of type tracing_map_e
* Tom Zanussi wrote:
>> Add tracing_map, a special-purpose lock-free map for tracing.
>>
>> tracing_map is designed to aggregate or 'sum' one or more values
>> associated with a specific object of type tracing_map_elt, which
>> is associated by the map to a given key.
>>
>> It provides various ho
On Thu, Jul 16, 2015 at 04:41:45PM -0500, Tom Zanussi wrote:
> On Thu, 2015-07-16 at 19:49 +0200, Peter Zijlstra wrote:
> > On Thu, Jul 16, 2015 at 12:22:40PM -0500, Tom Zanussi wrote:
> > > + for (i = 0; i < elt->map->n_fields; i++) {
> > > + atomic64_set(&dup_elt->fields[i].sum,
> > > +
On Thu, 2015-07-16 at 19:49 +0200, Peter Zijlstra wrote:
> On Thu, Jul 16, 2015 at 12:22:40PM -0500, Tom Zanussi wrote:
> > + for (i = 0; i < elt->map->n_fields; i++) {
> > + atomic64_set(&dup_elt->fields[i].sum,
> > +atomic64_read(&elt->fields[i].sum));
> > +
On Thu, 2015-07-16 at 20:03 +0200, Peter Zijlstra wrote:
> On Thu, Jul 16, 2015 at 12:22:40PM -0500, Tom Zanussi wrote:
> > + map->map = kcalloc(map->map_size, sizeof(struct tracing_map_entry),
> > + GFP_KERNEL);
>
> In a later email you state the max map size to be 128k, wi
On Thu, Jul 16, 2015 at 12:22:40PM -0500, Tom Zanussi wrote:
> + map->map = kcalloc(map->map_size, sizeof(struct tracing_map_entry),
> +GFP_KERNEL);
In a later email you state the max map size to be 128k, with a 16 byte
struct, that is 2m of memory for this allocation.
On Thu, Jul 16, 2015 at 12:22:40PM -0500, Tom Zanussi wrote:
> + for (i = 0; i < elt->map->n_fields; i++) {
> + atomic64_set(&dup_elt->fields[i].sum,
> + atomic64_read(&elt->fields[i].sum));
> + dup_elt->fields[i].cmp_fn = elt->fields[i].cmp_fn;
Add tracing_map, a special-purpose lock-free map for tracing.
tracing_map is designed to aggregate or 'sum' one or more values
associated with a specific object of type tracing_map_elt, which
is associated by the map to a given key.
It provides various hooks allowing per-tracer customization and
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