DPDK default burst size is 32, however, kernel xsk sendto syscall can not handle all 32 at one time, and return with error. So make kernel xdp socket batch size larger to avoid unnecessary syscall fail and context switch which will help increase performance. Signed-off-by: Li RongQing <lirongqing@xxxxxxxxx> --- net/xdp/xsk.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c index a71ed66..cd62d4b 100644 --- a/net/xdp/xsk.c +++ b/net/xdp/xsk.c @@ -30,7 +30,7 @@ #include "xdp_umem.h" #include "xsk.h" -#define TX_BATCH_SIZE 16 +#define TX_BATCH_SIZE 32 static DEFINE_PER_CPU(struct list_head, xskmap_flush_list); -- 1.7.1
