| #ifndef UTIL_PARALLEL_READ__ | |
| #define UTIL_PARALLEL_READ__ | |
| /* Read pieces of a file in parallel. This has a very specific use case: | |
| * reading files from Lustre is CPU bound so multiple threads actually | |
| * increases throughput. Speed matters when an LM takes a terabyte. | |
| */ | |
| #include <cstddef> | |
| #include <stdint.h> | |
| namespace util { | |
| void ParallelRead(int fd, void *to, std::size_t amount, uint64_t offset); | |
| } // namespace util | |
| #endif // UTIL_PARALLEL_READ__ |