Comment # 11
on bug 99130
from Dorota Czaplejewicz
Created attachment 128606 [details]
ftrace call graph log for i915_gem_wait_ioctl
The call log capturing i915_gem_wait_ioctl invokation and overhead.
The time of ioctl itself (20ns) is dwarfed by a slowdown somewhere in
console_unlock() related to printk() calls (650ns)
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