On 28/06/2019 12:12, Ravindra Kumar Meena wrote:
[...]
Could you please give me permission to push to your repository. I would
like to add a record item stream from a QorIQ T4240.
Did you get the invite? My GitHub handle is rmeena840.
Thanks, this worked. I pushed two commits.
lttng seems to create one event stream file per processor. This is your
next task.
1. Open a event stream file for each processor.
The stream file which has ctf event element?
2. Write the events of a processor (CPU) to the corresponding file.
Sorry, I didn't get this task?
Currently you write the events of all cpus into a single event stream file:
typedef struct ctf_event {
uint64_t ns;
uint32_t cpu;
rtems_record_event event;
uint64_t data;
} ctf_event;
static void print_item( FILE *f, const client_item *item )
{
ctf_event ctf_item;
ctf_item.ns = item->ns;
ctf_item.cpu= item->cpu;
ctf_item.event = item->event;
ctf_item.data = item->data;
fwrite( &ctf_item, sizeof( ctf_item ), 1, f );
}
Change this to write the items into separate event stream files per cpu,
e.g.
typedef struct ctf_event {
uint64_t ns;
rtems_record_event event;
uint64_t data;
} ctf_event;
static void print_item( FILE **f, const client_item *item )
{
ctf_event ctf_item;
ctf_item.ns = item->ns;
ctf_item.event = item->event;
ctf_item.data = item->data;
fwrite( &ctf_item, sizeof( ctf_item ), 1, f[ item->cpu ] );
}
Your event stream needs a packet header which indicates the cpu.
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