On Mon, Jul 11, 2016 at 12:53:19PM +0200, Lluís Vilanova wrote: > NOTE: This series applies on top of "trace: [*-user] Add commandline arguments > to control tracing". > > Provides per-vCPU dynamic controls of the tracing state of events with the > "vcpu" property. > > A later series proposes an optimization where tracing code can be elided for > dynamically disabled events (it uses multiple virtual TB caches optimized for > the current tracing state of the executing vCPU). > > > Changes in v9 > ============= > > * Clarify that "vcpu" property can be on any of the "trace-events" files > [Eric Blake]. > > > Changes in v8 > ============= > > * Fix detection of negative vCPU values in HMP [Markus Armbruster]. > > > Changes in v7 > ============= > > * Fix typo in commit message. > > > Changes in v6 > ============= > > * Rebase on 6f1d2d1. > * Add missing include in "scripts/tracetool/format/h.py". > > > Changes in v5 > ============= > > * Fix 'trace_event_is_vcpu()'. > * Move stub code into the "stubs/" directory [Stefan Hajnoczi]. > * Improve docs on QAPI and QMP commands [Markus Armbruster]. > * Rewrite 'get_cpu()' to be more in line with use of QEMU's Error objects > [Markus Armbruster]. > * Add "name" argument to HMP command "info trace-events". > * Add "vcpu" argument to HMP commands [Markus Armbruster]. > > > Changes in v4 > ============= > > * Make trace_events_dstate an uint16_t [Paolo Bonzini]. > * Revert trace_event_get_state_dynamic_by_id [Stefan Hajnoczi]. > * Do not add superfluous asserts [Paolo Bonzini]. > * Replace cpu -> vcpu in function names and arguments [Paolo Bonzini]. > * Add 'trace_event_is_vcpu' [Paolo Bonzini]. > * Remove 'trace_event_cpu_count' [Paolo Bonzini]. > > > Changes in v3 > ============= > > * Update QAPI version annotations [Eric Blake]. > > > Changes in v2 > ============= > > * Rebase on 9bbbf64. > * Fix removal of macro '_' in all target architectures. > * Document behaviour of 'trace_events_dstate'. > * Use a proper bitmap for CPUState::trace_dstate [Stefan Hajnoczi]. > > > Changes in v1 > ============= > > * Rebase on 1b16240. > * Split from v4 of "trace: Per-vCPU tracing states". > * Simplify event state initialization. > * Simplify logic deciding which events are treated by this patch (previously, > execution-time events with 'tcg' and 'vcpu' properties; now it's simply > events > with the 'vcpu' property). > * Make tracing backends comply with the per-vCPU tracing state. > > > Signed-off-by: Lluís Vilanova <vilan...@ac.upc.edu> > --- > > Lluís Vilanova (7): > trace: Identify events with the 'vcpu' property > disas: Remove unused macro '_' > [trivial] trace: Cosmetic changes on fast-path tracing > trace: Add per-vCPU tracing states for events with the 'vcpu' property > trace: Conditionally trace events based on their per-vCPU state > trace: Allow event name pattern in "info trace-events" > trace: Add QAPI/QMP interfaces to query and control per-vCPU tracing > state > > > bsd-user/main.c | 1 > disas/alpha.c | 6 + > disas/arm.c | 2 > disas/i386.c | 2 > disas/m68k.c | 4 - > disas/mips.c | 50 ++++++----- > disas/ppc.c | 22 +++-- > disas/sparc.c | 6 + > hmp-commands-info.hx | 8 +- > hmp-commands.hx | 7 +- > hmp.h | 1 > include/disas/bfd.h | 1 > include/qom/cpu.h | 6 + > linux-user/main.c | 1 > monitor.c | 46 ++++++++++- > qapi/trace.json | 33 +++++++- > qmp-commands.hx | 35 ++++++++ > qom/cpu.c | 1 > scripts/tracetool/backend/dtrace.py | 4 - > scripts/tracetool/backend/ftrace.py | 20 ++--- > scripts/tracetool/backend/log.py | 26 ++++-- > scripts/tracetool/backend/simple.py | 13 ++- > scripts/tracetool/backend/ust.py | 4 - > scripts/tracetool/format/events_c.py | 11 ++- > scripts/tracetool/format/events_h.py | 12 +++ > scripts/tracetool/format/h.py | 19 ++++ > stubs/Makefile.objs | 1 > stubs/trace-control.c | 28 ++++++ > trace/Makefile.objs | 4 + > trace/control-internal.h | 47 +++++++++-- > trace/control-target.c | 53 ++++++++++++ > trace/control.c | 29 ++++++- > trace/control.h | 78 ++++++++++++++++++ > trace/event-internal.h | 4 + > trace/qmp.c | 148 > +++++++++++++++++++++++++++------- > translate-all.h | 3 + > vl.c | 1 > 37 files changed, 601 insertions(+), 136 deletions(-) > create mode 100644 stubs/trace-control.c > create mode 100644 trace/control-target.c > > > To: qemu-devel@nongnu.org > Cc: Stefan Hajnoczi <stefa...@redhat.com> > Cc: Eduardo Habkost <ehabk...@redhat.com> > Cc: Eric Blake <ebl...@redhat.com> > Cc: Paolo Bonzini <pbonz...@redhat.com>
Thanks, applied to my tracing tree: https://github.com/stefanha/qemu/commits/tracing Stefan
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