Google Git
Sign in
boringssl / boringssl.git / a2d4c0c426caf2b212dea39d7bc05868d780eb34
commita2d4c0c426caf2b212dea39d7bc05868d780eb34[log] [tgz]
authorDavid Benjamin <davidben@google.com>Sun Mar 20 17:53:34 2016 -0400
committerDavid Benjamin <davidben@google.com>Sat Mar 26 04:56:45 2016 +0000
tree0913b4704c330817d5c57bcdb653990642c30e75
parent054e151b16be6ada891ee8fd71915088dda30886 [diff]
Work around Android devices without AT_HWCAP2.

Some ARMv8 Android devices don't have AT_HWCAP2. This means, when running in
32-bit mode (ARM capability APIs on Linux are different between AArch32 and
AArch64), we can't discover the various nice instructions.

On a Nexus 6P, this gives a, uh, minor performance win when running in 32-bit
mode.

Before:
Did 1085000 AES-128-GCM (16 bytes) seal operations in 1000003us (1084996.7 ops/sec): 17.4 MB/s
Did 60000 AES-128-GCM (1350 bytes) seal operations in 1013416us (59205.7 ops/sec): 79.9 MB/s
Did 11000 AES-128-GCM (8192 bytes) seal operations in 1019778us (10786.7 ops/sec): 88.4 MB/s
Did 1009000 AES-256-GCM (16 bytes) seal operations in 1000650us (1008344.6 ops/sec): 16.1 MB/s
Did 49000 AES-256-GCM (1350 bytes) seal operations in 1015698us (48242.7 ops/sec): 65.1 MB/s
Did 9394 AES-256-GCM (8192 bytes) seal operations in 1071104us (8770.4 ops/sec): 71.8 MB/s
Did 1557000 SHA-1 (16 bytes) operations in 1000317us (1556506.6 ops/sec): 24.9 MB/s
Did 762000 SHA-1 (256 bytes) operations in 1000527us (761598.6 ops/sec): 195.0 MB/s
Did 45000 SHA-1 (8192 bytes) operations in 1013773us (44388.6 ops/sec): 363.6 MB/s
Did 1459000 SHA-256 (16 bytes) operations in 1000271us (1458604.7 ops/sec): 23.3 MB/s
Did 538000 SHA-256 (256 bytes) operations in 1000990us (537467.9 ops/sec): 137.6 MB/s
Did 26000 SHA-256 (8192 bytes) operations in 1008403us (25783.3 ops/sec): 211.2 MB/s

After:
Did 1890000 AES-128-GCM (16 bytes) seal operations in 1000068us (1889871.5 ops/sec): 30.2 MB/s
Did 509000 AES-128-GCM (1350 bytes) seal operations in 1000112us (508943.0 ops/sec): 687.1 MB/s
Did 110000 AES-128-GCM (8192 bytes) seal operations in 1007966us (109130.7 ops/sec): 894.0 MB/s
Did 1960000 AES-256-GCM (16 bytes) seal operations in 1000303us (1959406.3 ops/sec): 31.4 MB/s
Did 460000 AES-256-GCM (1350 bytes) seal operations in 1001873us (459140.0 ops/sec): 619.8 MB/s
Did 97000 AES-256-GCM (8192 bytes) seal operations in 1005337us (96485.1 ops/sec): 790.4 MB/s
Did 1927000 SHA-1 (16 bytes) operations in 1000429us (1926173.7 ops/sec): 30.8 MB/s
Did 1151000 SHA-1 (256 bytes) operations in 1000425us (1150511.0 ops/sec): 294.5 MB/s
Did 87000 SHA-1 (8192 bytes) operations in 1003089us (86732.1 ops/sec): 710.5 MB/s
Did 2357390 SHA-256 (16 bytes) operations in 1000116us (2357116.6 ops/sec): 37.7 MB/s
Did 1410000 SHA-256 (256 bytes) operations in 1000176us (1409751.9 ops/sec): 360.9 MB/s
Did 101000 SHA-256 (8192 bytes) operations in 1007007us (100297.2 ops/sec): 821.6 MB/s

BUG=chromium:596156

Change-Id: Iacc1f8d8a07e991d4615f2e12c5c54923fb31aa2
Reviewed-on: https://boringssl-review.googlesource.com/7507
Reviewed-by: David Benjamin <davidben@google.com>
1 file changed
tree: 0913b4704c330817d5c57bcdb653990642c30e75
  1. .github/
  2. crypto/
  3. decrepit/
  4. fuzz/
  5. include/
  6. ssl/
  7. tool/
  8. util/
  9. .clang-format
  10. .gitignore
  11. BUILDING.md
  12. CMakeLists.txt
  13. codereview.settings
  14. CONTRIBUTING.md
  15. FUZZING.md
  16. LICENSE
  17. PORTING.md
  18. README.md
  19. STYLE.md
README.md

BoringSSL

BoringSSL is a fork of OpenSSL that is designed to meet Google's needs.

Although BoringSSL is an open source project, it is not intended for general use, as OpenSSL is. We don't recommend that third parties depend upon it. Doing so is likely to be frustrating because there are no guarantees of API or ABI stability.

Programs ship their own copies of BoringSSL when they use it and we update everything as needed when deciding to make API changes. This allows us to mostly avoid compromises in the name of compatibility. It works for us, but it may not work for you.

BoringSSL arose because Google used OpenSSL for many years in various ways and, over time, built up a large number of patches that were maintained while tracking upstream OpenSSL. As Google's product portfolio became more complex, more copies of OpenSSL sprung up and the effort involved in maintaining all these patches in multiple places was growing steadily.

Currently BoringSSL is the SSL library in Chrome/Chromium, Android (but it's not part of the NDK) and a number of other apps/programs.

There are other files in this directory which might be helpful: