diff options
Diffstat (limited to 'book/en/src/by-example/tips_indirection.md')
| -rw-r--r-- | book/en/src/by-example/tips_indirection.md | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/book/en/src/by-example/tips_indirection.md b/book/en/src/by-example/tips_indirection.md index 22c5774..1a330c5 100644 --- a/book/en/src/by-example/tips_indirection.md +++ b/book/en/src/by-example/tips_indirection.md @@ -3,7 +3,9 @@ Message passing always involves copying the payload from the sender into a static variable and then from the static variable into the receiver. Thus sending a large buffer, like a `[u8; 128]`, as a message involves two expensive -`memcpy`s. To minimize the message passing overhead one can use indirection: +`memcpy`s. + +Indirection can minimize message passing overhead: instead of sending the buffer by value, one can send an owning pointer into the buffer. @@ -23,4 +25,3 @@ Here's an example where `heapless::Pool` is used to "box" buffers of 128 bytes. $ cargo run --target thumbv7m-none-eabi --example pool {{#include ../../../../ci/expected/pool.run}} ``` - |