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test/gem_gtt_speed: Add a baseline test for the performance of a CPU mmap

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When looking at the pwrite/pread/wc performance, it is useful to judge
that against the performance of an ordinary CPU mmap.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson
2012-06-04 17:29:20 +01:00
parent b558877f6e
commit 77586dcdf7
4 changed files with 94 additions and 21 deletions
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lib/drmtest.h
+5 -1
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@@ -52,7 +52,11 @@ void gem_set_domain(int fd, uint32_t handle,
uint32_t read_domains, uint32_t write_domain);
void gem_sync(int fd, uint32_t handle);
uint32_t gem_create(int fd, int size);
void *gem_mmap(int fd, uint32_t handle, int size, int prot);
void *gem_mmap__gtt(int fd, uint32_t handle, int size, int prot);
void *gem_mmap__cpu(int fd, uint32_t handle, int size, int prot);
#define gem_mmap gem_mmap__gtt
uint64_t gem_aperture_size(int fd);
uint64_t gem_mappable_aperture_size(void);
int gem_madvise(int fd, uint32_t handle, int state);