diff options
| author | Andy Walls <[email protected]> | 2010-02-10 15:34:46 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <[email protected]> | 2010-02-26 15:11:07 -0300 |
| commit | 587808d5f59e842f9258a15e88ad530fcf6e6763 (patch) | |
| tree | 07252eaff987faf5ad1b6256d520c13ab90e4554 /tools/perf/scripts/python/syscall-counts.py | |
| parent | 00cb9f6920aaeb34bcef146085ae57e363641a85 (diff) | |
V4L/DVB: ivtv: Fix ivtv_api_get_data() to avoid unneeded IO during IRQ handling
ivtv_api_get_data() was performing more PCI MMIO than needed, resulting
often in it accounting for more than half the total time spent in
ivtv_irq_handler(). Now it only reads at most 7 of the 16 mailbox data words
over the PCI bus, and in some instances only 2 or 3 data words as needed.
Signed-off-by: Andy Walls <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions