2f128eb330
Most of the time during the RX is caused by the compound_head() call
done at the end of the RX loop:
│ build_skb():
[...]
│ static inline struct page *compound_head(struct page *page)
│ {
│ unsigned long head = READ_ONCE(page->compound_head);
65.23 │ ldr x2, [x1, #8]
Prefetch the page struct as soon as possible, to speedup the RX path
noticeabily by a ~3-4% packet rate in a drop test.
│ build_skb():
[...]
│ static inline struct page *compound_head(struct page *page)
│ {
│ unsigned long head = READ_ONCE(page->compound_head);
17.92 │ ldr x2, [x1, #8]
Signed-off-by: Matteo Croce <mcroce@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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|---|---|---|
| .. | ||
| Makefile | ||
| mvpp2.h | ||
| mvpp2_cls.c | ||
| mvpp2_cls.h | ||
| mvpp2_debugfs.c | ||
| mvpp2_main.c | ||
| mvpp2_prs.c | ||
| mvpp2_prs.h | ||
| mvpp2_tai.c | ||