From eac26718e62a0c7cb5506f2cf188a4cac4794726 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sun, 3 Apr 2016 16:44:27 +0100 Subject: benchmarks/gem_latency: Add a -C switch to measure impact of cmdparser Signed-off-by: Chris Wilson --- benchmarks/gem_latency.c | 32 +++++++++++++++++++++++--------- 1 file changed, 23 insertions(+), 9 deletions(-) (limited to 'benchmarks/gem_latency.c') diff --git a/benchmarks/gem_latency.c b/benchmarks/gem_latency.c index 79de0efd..27d286c4 100644 --- a/benchmarks/gem_latency.c +++ b/benchmarks/gem_latency.c @@ -44,6 +44,10 @@ #include #include "drm.h" +#define CONTEXT 0x1 +#define REALTIME 0x2 +#define CMDPARSER 0x4 + static int done; static int fd; static volatile uint32_t *timestamp_reg; @@ -169,7 +173,8 @@ static uint32_t create_workload(int gen, int factor) static void setup_workload(struct producer *p, int gen, uint32_t scratch, uint32_t batch, - int factor) + int factor, + unsigned flags) { struct drm_i915_gem_execbuffer2 *eb; const int has_64bit_reloc = gen >= 8; @@ -206,11 +211,13 @@ static void setup_workload(struct producer *p, int gen, eb = memset(&p->workload_dispatch.execbuf, 0, sizeof(*eb)); eb->buffers_ptr = (uintptr_t)p->workload_dispatch.exec; eb->buffer_count = 2; + if (flags & CMDPARSER) + eb->batch_len = 4096; eb->flags = I915_EXEC_BLT | LOCAL_EXEC_NO_RELOC; eb->rsvd1 = p->ctx; } -static void setup_latency(struct producer *p, int gen) +static void setup_latency(struct producer *p, int gen, unsigned flags) { struct drm_i915_gem_execbuffer2 *eb; const int has_64bit_reloc = gen >= 8; @@ -250,6 +257,8 @@ static void setup_latency(struct producer *p, int gen) eb = memset(&p->latency_dispatch.execbuf, 0, sizeof(*eb)); eb->buffers_ptr = (uintptr_t)p->latency_dispatch.exec; eb->buffer_count = 1; + if (flags & CMDPARSER) + eb->batch_len = sizeof(*map) * ((i + 1) & ~1); eb->flags = I915_EXEC_BLT | LOCAL_EXEC_NO_RELOC; eb->rsvd1 = p->ctx; } @@ -265,7 +274,7 @@ static uint32_t create_nop(void) return handle; } -static void setup_nop(struct producer *p, uint32_t batch) +static void setup_nop(struct producer *p, uint32_t batch, unsigned flags) { struct drm_i915_gem_execbuffer2 *eb; @@ -274,6 +283,8 @@ static void setup_nop(struct producer *p, uint32_t batch) eb = memset(&p->nop_dispatch.execbuf, 0, sizeof(*eb)); eb->buffers_ptr = (uintptr_t)p->nop_dispatch.exec; eb->buffer_count = 1; + if (flags & CMDPARSER) + eb->batch_len = 8; eb->flags = I915_EXEC_BLT | LOCAL_EXEC_NO_RELOC; eb->rsvd1 = p->ctx; } @@ -388,8 +399,6 @@ static double cpu_time(const struct rusage *r) (r->ru_utime.tv_usec + r->ru_stime.tv_usec); } -#define CONTEXT 1 -#define REALTIME 2 static int run(int seconds, int nproducers, int nconsumers, @@ -442,9 +451,9 @@ static int run(int seconds, if (flags & CONTEXT) p[n].ctx = gem_context_create(fd); - setup_nop(&p[n], nop_batch); - setup_workload(&p[n], gen, scratch, workload_batch, workload); - setup_latency(&p[n], gen); + setup_nop(&p[n], nop_batch, flags); + setup_workload(&p[n], gen, scratch, workload_batch, workload, flags); + setup_latency(&p[n], gen, flags); pthread_mutex_init(&p[n].lock, NULL); pthread_cond_init(&p[n].p_cond, NULL); @@ -546,7 +555,7 @@ int main(int argc, char **argv) unsigned flags = 0; int c; - while ((c = getopt(argc, argv, "p:c:n:w:t:f:sR")) != -1) { + while ((c = getopt(argc, argv, "Cp:c:n:w:t:f:sR")) != -1) { switch (c) { case 'p': /* How many threads generate work? */ @@ -605,6 +614,11 @@ int main(int argc, char **argv) flags |= REALTIME; break; + case 'C': + /* Don't hide from the command parser (gen7) */ + flags |= CMDPARSER; + break; + default: break; } -- cgit v1.2.3