Searched hist:c4e96dbfccef3d8089d94b23e3724ac313c68886 (Results 1 – 2 of 2) sorted by relevance
| /rk3399_rockchip-uboot/include/configs/ |
| H A D | trats2.h | c4e96dbfccef3d8089d94b23e3724ac313c68886 Tue Jan 14 07:02:26 UTC 2014 Łukasz Majewski <l.majewski@samsung.com> config: Update envs for trats and trats2 - Disable L2 cache
Disable L2 caches for Trats and Trats2 devices.
It turns out that for data downloading with thordown command L2 cache
disablement brings a significant speed improvement.
rootfs - 400 MiB:
- L2 cache enabled: 2.69 MiB/s
- L2 cache disabled: 5.56 MiB/s
Such improvement is possible due to reduction of the need to invalidate
redundant data, which resides in L2 cache.
Since the sent USB request size at once is 512B (L1 - 32 KiB in total) -
one can be quite confident that it is already available in L1 and L2 can
be disabled.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Acked-by: Minkyu Kang <mk7.kang@samsung.com>
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| H A D | trats.h | c4e96dbfccef3d8089d94b23e3724ac313c68886 Tue Jan 14 07:02:26 UTC 2014 Łukasz Majewski <l.majewski@samsung.com> config: Update envs for trats and trats2 - Disable L2 cache
Disable L2 caches for Trats and Trats2 devices.
It turns out that for data downloading with thordown command L2 cache
disablement brings a significant speed improvement.
rootfs - 400 MiB:
- L2 cache enabled: 2.69 MiB/s
- L2 cache disabled: 5.56 MiB/s
Such improvement is possible due to reduction of the need to invalidate
redundant data, which resides in L2 cache.
Since the sent USB request size at once is 512B (L1 - 32 KiB in total) -
one can be quite confident that it is already available in L1 and L2 can
be disabled.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Acked-by: Minkyu Kang <mk7.kang@samsung.com>
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