diff options
| author |   hanlin <hanlin_wang@163.com> | 2020-05-19 17:34:17 +0800 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2020-05-20 15:30:28 +0000 |
| commit | 4266d4d5ff96043f6d2fbd217e97eddf8916e346 (patch) | |
| tree | 4fcee312019fc21bc658e57fbf9c6898022a53d2 /src/vcl/vcl_locked.c | |
| parent | cf755442670b9126b3f6aabe27c2bfb32179fafa (diff) | |
vcl: nest vcl_mq_epfd to support epoll_wait without high CPU usage
Now, libc epfd and vls epfd are independent and can only epoll_wait independently without timeout, then app calling epoll_wait will occupy high CPU. So we nest vcl_mq_epfd into libc epfd when using eventfd with VPP, and then we can only epoll_wait libc epfd with specified timeout.
Type: feature
Signed-off-by: hanlin <hanlin_wang@163.com>
Change-Id: I6b6e0f501c769e186714bfbc187cfaed2533b4c2
Signed-off-by: hanlin <hanlin_wang@163.com>
Diffstat (limited to 'src/vcl/vcl_locked.c')
| -rw-r--r-- | src/vcl/vcl_locked.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/vcl/vcl_locked.c b/src/vcl/vcl_locked.c index ae9c9762dc1..19522c05d61 100644 --- a/src/vcl/vcl_locked.c +++ b/src/vcl/vcl_locked.c @@ -1381,6 +1381,12 @@ vls_app_create (char *app_name) return VPPCOM_OK; } +unsigned char +vls_use_eventfd (void) +{ + return vcm->cfg.use_mq_eventfd; +} + /* * fd.io coding-style-patch-verification: ON * |