diff options
Diffstat (limited to 'verifier.cpp')
| -rw-r--r-- | verifier.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/verifier.cpp b/verifier.cpp index a2ef946b5..523990561 100644 --- a/verifier.cpp +++ b/verifier.cpp @@ -207,10 +207,10 @@ int verify_file(unsigned char* addr, size_t length, double frac = -1.0; size_t so_far = 0; while (so_far < signed_len) { - // On a Nexus 9, experiment didn't show any performance improvement with - // larger sizes past 1MiB, and they reduce the granularity of the progress - // bar. http://b/28135231. - size_t size = std::min(signed_len - so_far, 1 * MiB); + // On a Nexus 5X, experiment showed 16MiB beat 1MiB by 6% faster for a + // 1196MiB full OTA and 60% for an 89MiB incremental OTA. + // http://b/28135231. + size_t size = std::min(signed_len - so_far, 16 * MiB); if (need_sha1) SHA1_Update(&sha1_ctx, addr + so_far, size); if (need_sha256) SHA256_Update(&sha256_ctx, addr + so_far, size); |