2 Commits (038c630ec120f0b305713ad55b9e1322afa4cea6)

Author	SHA1	Message	Date
Andrew Werner	038c630ec1	aya: Implement RingBuf ... This implements the userspace binding for RingBuf. Instead of streaming the samples as heap buffers, the process_ring function takes a callback to which we pass the event's byte region, roughly following [libbpf]'s API design. This avoids a copy and allows marking the consumer pointer in a timely manner. [libbpf]: https://github.com/libbpf/libbpf/blob/master/src/ringbuf.c Additionally, integration tests are added to demonstrate the usage of the new APIs and to ensure that they work end-to-end. Co-authored-by: William Findlay <william@williamfindlay.com> Co-authored-by: Tatsuyuki Ishi <ishitatsuyuki@gmail.com>	2 years ago
Tamir Duberstein	23bea22ac1	integration-test: build one binary instead of N ... "integration tests" as defined by Cargo produce a binary per file in the tests directory. This is really not what we want and has a number of downsides, but the main one is binary size. Before: tamird@pc:~/src/aya$ cargo xtask build-integration-test | xargs ls -lah Finished dev [unoptimized + debuginfo] target(s) in 0.05s Running `target/debug/xtask build-integration-test` Compiling integration-test v0.1.0 (/home/tamird/src/aya/test/integration-test) Finished dev [unoptimized + debuginfo] target(s) in 0.68s -rwxrwxr-x 1 tamird tamird 34M Jul 12 15:21 /home/tamird/src/aya/target/debug/deps/bpf_probe_read-e03eb905a5e6209c -rwxrwxr-x 1 tamird tamird 35M Jul 12 15:21 /home/tamird/src/aya/target/debug/deps/btf_relocations-57a4fbb38bf06064 -rwxrwxr-x 1 tamird tamird 31M Jul 12 15:21 /home/tamird/src/aya/target/debug/deps/elf-98b7a32d6d04effb -rwxrwxr-x 1 tamird tamird 6.9M Jul 12 15:21 /home/tamird/src/aya/target/debug/deps/integration_test-0dd55ce96bfdad77 -rwxrwxr-x 1 tamird tamird 34M Jul 12 15:21 /home/tamird/src/aya/target/debug/deps/load-0718562e85b86d03 -rwxrwxr-x 1 tamird tamird 40M Jul 12 15:21 /home/tamird/src/aya/target/debug/deps/log-dbf355f9ea34068a -rwxrwxr-x 1 tamird tamird 36M Jul 12 15:21 /home/tamird/src/aya/target/debug/deps/rbpf-89a1bb848fa5cc3c -rwxrwxr-x 1 tamird tamird 34M Jul 12 15:21 /home/tamird/src/aya/target/debug/deps/relocations-cfe655c3bb413d8b -rwxrwxr-x 1 tamird tamird 34M Jul 12 15:21 /home/tamird/src/aya/target/debug/deps/smoke-ccd3974180a3fd29 After: tamird@pc:~/src/aya$ cargo xtask build-integration-test | xargs ls -lah Finished dev [unoptimized + debuginfo] target(s) in 0.05s Running `target/debug/xtask build-integration-test` Compiling integration-test v0.1.0 (/home/tamird/src/aya/test/integration-test) Finished dev [unoptimized + debuginfo] target(s) in 0.90s -rwxrwxr-x 1 tamird tamird 47M Jul 12 15:21 /home/tamird/src/aya/target/debug/deps/integration_test-0dd55ce96bfdad77 Since we plan to run these tests in a VM, copying 10x fewer bytes seems like a win.	2 years ago