qemu/accel
Emilio G. Cota d071f4cd55 trace: enable tracing of TCG atomics
We do not trace guest atomic accesses. Fix it.

Tested with a modified atomic_add-bench so that it executes
a deterministic number of instructions, i.e. fixed seeding,
no threading and fixed number of loop iterations instead
of running for a certain time.

Before:
- With parallel_cpus = false (no clone syscall so it is never set to true):
  220070 memory accesses
- With parallel_cpus = true (hard-coded):
  212105 memory accesses <-- we're not tracing the atomics!

After:
  220070 memory accesses regardless of parallel_cpus.

Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-id: 1527028012-21888-6-git-send-email-cota@braap.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-06-27 11:09:24 +01:00
..
kvm kvm: introduce memory encryption APIs 2018-03-13 12:04:03 +01:00
stubs tcg: fix --disable-tcg build breakage 2018-06-22 18:55:24 +01:00
tcg trace: enable tracing of TCG atomics 2018-06-27 11:09:24 +01:00
accel.c accel: use g_strsplit for parsing accelerator names 2018-05-09 00:13:38 +02:00
Makefile.objs kvm: add memory encryption context 2018-03-13 12:04:03 +01:00