diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2015-11-27 09:56:09 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2015-11-27 10:03:56 +0000 |
| commit | d44100ed233db46085b626c1d493856ca1900eab (patch) | |
| tree | 4f721a4768892b4f1f2e5a221e55726b35ffb809 /benchmarks/gem_exec_ctx.c | |
| parent | 26507f3e21fe14b0fe5b3daec73c26f37bb2189a (diff) | |
benchmarks/gem_exec_ctx: Measure switching between fds
Switching between fds also involves a context switch, include it amongst
the measurements.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'benchmarks/gem_exec_ctx.c')
| -rw-r--r-- | benchmarks/gem_exec_ctx.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/benchmarks/gem_exec_ctx.c b/benchmarks/gem_exec_ctx.c index 2da653aa..58ebf0b4 100644 --- a/benchmarks/gem_exec_ctx.c +++ b/benchmarks/gem_exec_ctx.c @@ -44,7 +44,7 @@ #include "intel_io.h" #include "igt_stats.h" -enum mode { NOP, CREATE, SWITCH, }; +enum mode { NOP, CREATE, SWITCH, DEFAULT }; #define LOCAL_I915_EXEC_NO_RELOC (1<<11) #define LOCAL_I915_EXEC_HANDLE_LUT (1<<12) @@ -86,13 +86,15 @@ static int loop(unsigned ring, int reps, enum mode mode) { struct drm_i915_gem_execbuffer2 execbuf; struct drm_i915_gem_exec_object2 gem_exec; - int count, fd; + int count, fds[2], fd; uint32_t ctx; - fd = drm_open_driver(DRIVER_INTEL); + fd = fds[0] = drm_open_driver(DRIVER_INTEL); + fds[1] = drm_open_driver(DRIVER_INTEL); memset(&gem_exec, 0, sizeof(gem_exec)); gem_exec.handle = batch(fd); + igt_assert(gem_open(fds[1], gem_flink(fds[0], gem_exec.handle)) == gem_exec.handle); memset(&execbuf, 0, sizeof(execbuf)); execbuf.buffers_ptr = (uintptr_t)&gem_exec; @@ -100,16 +102,17 @@ static int loop(unsigned ring, int reps, enum mode mode) execbuf.flags = ring; execbuf.flags |= LOCAL_I915_EXEC_HANDLE_LUT; execbuf.flags |= LOCAL_I915_EXEC_NO_RELOC; - execbuf.rsvd1 = __gem_context_create(fd); - if (execbuf.rsvd1 == 0) - return 77; + if (mode != DEFAULT) { + execbuf.rsvd1 = __gem_context_create(fd); + if (execbuf.rsvd1 == 0) + return 77; + } if (__gem_execbuf(fd, &execbuf)) { execbuf.flags = ring; if (__gem_execbuf(fd, &execbuf)) return 77; } - ctx = gem_context_create(fd); for (count = 1; count <= 1<<16; count <<= 1) { @@ -136,6 +139,11 @@ static int loop(unsigned ring, int reps, enum mode mode) execbuf.rsvd1 = ctx; ctx = tmp; break; + + case DEFAULT: + fd = fds[count & 1]; + break; + case NOP: break; } @@ -181,6 +189,8 @@ int main(int argc, char **argv) mode = CREATE; else if (strcmp(optarg, "switch") == 0) mode = SWITCH; + else if (strcmp(optarg, "default") == 0) + mode = DEFAULT; else if (strcmp(optarg, "nop") == 0) mode = NOP; else |