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foc: add idle times as trace source 

Issue #3390
This commit is contained in:
Alexander Boettcher 2019-05-29 13:37:14 +02:00 committed by Christian Helmuth
parent a7825ef292
commit fc1b7a626c
1 changed files with 50 additions and 0 deletions
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50
repos/base-foc/src/core/platform.cc
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@ -16,6 +16,8 @@
#include <base/log.h>
#include <base/allocator_avl.h>
#include <base/sleep.h>
#include <dataspace/capability.h>
#include <trace/source_registry.h>
#include <util/misc_math.h>
#include <util/xml_generator.h>
@ -525,6 +527,54 @@ Platform::Platform() :
init_core_log(Core_log_range { core_local_addr, size } );
}
Affinity::Space const cpus = affinity_space();
for (unsigned cpu_id = 0; cpu_id < cpus.width(); cpu_id++)
{
struct Trace_source : public Trace::Source::Info_accessor,
private Trace::Control,
private Trace::Source
{
Affinity::Location const affinity;
Genode::String<8> const name;
/**
* Trace::Source::Info_accessor interface
*/
Info trace_source_info() const override
{
uint64_t ec_time = 0;
uint64_t const sc_time = 0;
using namespace Fiasco;
l4_sched_cpu_set_t const cpu = l4_sched_cpu_set(affinity.xpos(), 0);
l4_msgtag_t const res = l4_scheduler_idle_time(L4_BASE_SCHEDULER_CAP,
&cpu, &ec_time);
if (l4_error(res))
Genode::error("idle times for cpu ", affinity.xpos(),
" are not available");
return { Session_label("kernel"), Trace::Thread_name(name),
Trace::Execution_time(ec_time, sc_time), affinity };
}
Trace_source(Trace::Source_registry &registry,
Affinity::Location const affinity,
char const * type_name)
:
Trace::Control(),
Trace::Source(*this, *this), affinity(affinity),
name(type_name)
{
registry.insert(this);
}
};
new (core_mem_alloc()) Trace_source(Trace::sources(),
Affinity::Location(cpu_id, 0,
cpus.width(), 1),
"idle");
}
}