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| author |   Dave Barach <dave@barachs.net> | 2020-04-09 17:24:07 -0400 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2020-04-13 15:54:31 +0000 |
| commit | c74b43c80789f5e437dfe4cc491157b45a7f222e (patch) | |
| tree | 0d149b8147d8225b5a872e709c6845476575fd1f /src/vlib/main.h | |
| parent | c54162981cdd41d65ed283df36955007552ddffe (diff) | |
buffers: configurable buffer fault injector
When configured at compile time via the cmake
VPP_BUFFER_FAULT_INJECTOR option, the buffer allocator will appear to
fail a certain fraction of the time.
By default, the allocator succeeds 80% of the time. Detailed command
line configuration options are available, but only when the image has
been compiled with cmake option described above:
vlib { buffer-alloc-success-rate [0.0 ... 1.0]
buffer-alloc-success-seed <nnnn> }
Modify vlib_buffer_pool_create(...) so 0 is always an invalid buffer
index.
Debug images: add checks for bad buffer index enqueues, and also
verify that f->n_vectors doesn't accidentally map one or more
instances of the frame poison pattern 0xfefefefe.
Type: improvement
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: Iab939858014463d1e664682805013d334d6fcbe5
Diffstat (limited to 'src/vlib/main.h')
| -rw-r--r-- | src/vlib/main.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/vlib/main.h b/src/vlib/main.h index 0e65c817ae1..598c3ba836f 100644 --- a/src/vlib/main.h +++ b/src/vlib/main.h @@ -276,6 +276,10 @@ typedef struct vlib_main_t uword *processing_rpc_requests; clib_spinlock_t pending_rpc_lock; + /* buffer fault injector */ + u32 buffer_alloc_success_seed; + f64 buffer_alloc_success_rate; + } vlib_main_t; /* Global main structure. */ |