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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/CMakeLists.txt | |
| 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/CMakeLists.txt')
| -rw-r--r-- | src/vlib/CMakeLists.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/vlib/CMakeLists.txt b/src/vlib/CMakeLists.txt index c2a0d63f4d8..67d1f6d05c7 100644 --- a/src/vlib/CMakeLists.txt +++ b/src/vlib/CMakeLists.txt @@ -11,9 +11,17 @@ # See the License for the specific language governing permissions and # limitations under the License. +option(VPP_BUFFER_FAULT_INJECTOR "Include the buffer fault injector" OFF) + ############################################################################## # Generate vlib/config.h ############################################################################## +if(VPP_BUFFER_FAULT_INJECTOR) + set(BUFFER_ALLOC_FAULT_INJECTOR 1 CACHE STRING "fault injector on") +else() + set(BUFFER_ALLOC_FAULT_INJECTOR 0 CACHE STRING "fault injector off") +endif() + set(PRE_DATA_SIZE 128 CACHE STRING "Buffer headroom size.") configure_file( ${CMAKE_SOURCE_DIR}/vlib/config.h.in |