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21 Commits

Author SHA1 Message Date
Krishna Srinivas 18728a0b59 XL/erasure-read: refactor erasure read and add tests (#2232) 2016-07-20 01:30:30 -07:00
Harshavardhana ddf3245677 xl/fs: offset and length cannot be negative. (#2121) 
Fixes #2119
 2016-07-07 01:30:34 -07:00
Bala FA 44ae7a037b fix: allocate buffer to required size than readSizeV1 (#2095) 
Refer #2077
 2016-07-05 20:59:54 -07:00
Harshavardhana d484157d67 XL/bitrot: Migrate to new blake2b-simd SIMD optimized implementation. (#2031) 
Thanks for Frank Wessels <fwessels@xs4all.nl> for all the heavy lifting work.

Comparative benchmarks are as below.
```
benchmark                old ns/op     new ns/op     delta
BenchmarkHash64-4        742           411           -44.61%
BenchmarkHash128-4       681           346           -49.19%
BenchmarkWrite1K-4       4239          1497          -64.69%
BenchmarkWrite8K-4       33633         11514         -65.77%
BenchmarkWrite32K-4      134091        45947         -65.73%
BenchmarkWrite128K-4     537976        183643        -65.86%

benchmark                old MB/s     new MB/s     speedup
BenchmarkHash64-4        86.18        155.51       1.80x
BenchmarkHash128-4       187.96       369.10       1.96x
BenchmarkWrite1K-4       241.55       683.87       2.83x
BenchmarkWrite8K-4       3897.06      11383.41     2.92x
BenchmarkWrite32K-4      977.48       2852.63      2.92x
BenchmarkWrite128K-4     243.64       713.73       2.93x
```

Fixes #2030
 2016-06-29 02:06:35 -07:00
karthic rao ce7d5eddbc Misspell warnings fix (#2001) 2016-06-26 22:05:48 -07:00
karthic rao ed2fdd90b0 fs: Fix GetObject failure to read large blocks. (#1982) 
Add relevant test cases as well for verifying this
part of the codebase.

Fixes #1979
 2016-06-25 03:03:27 -07:00
Harshavardhana e8990e42c2 XL: Make allocations simpler avoid redundant allocs. (#1961) 
- Reduce 10MiB buffers for loopy calls to use 128KiB.
- start using 128KiB buffer where needed.
 2016-06-24 02:06:23 -07:00
Harshavardhana e10934a88e bitrot: Start using blake2b algorithm and remove sha512 usage. (#1957) 
Fixes #1952
 2016-06-22 17:13:26 -07:00
Harshavardhana 9b82e64a11 XL/erasure-read: Avoid memory copy, write to writer directly all the dataBlocks. 2016-06-23 02:06:57 +05:30
Krishna Srinivas d4bea5fbf8 XL/erasure-read: Add Comments and enable bitrot detection. 2016-06-23 00:34:47 +05:30
Krishna Srinivas 17efaaa902 XL/erasure-read: Support parallel reads from disks. 2016-06-23 00:34:47 +05:30
Bala FA 8559e89494 XL: fix getBlockInfo() to return correct end block (#1941) 
If requested offset/length of an object is equal to
erasureInfo.BlockSize, getBlockInfo() returns one more block added to
actual end block.  This patch fixes the issue.

This patch also adds unit test for get objects with big files.
 2016-06-20 14:23:25 -07:00
Bala FA 1ea1dba528 erasure-readfile: write to given Writer than returning buffer. (#1910) 
Fixes #1889
 2016-06-19 13:35:26 -07:00
Bala.FA 2eb6fa3fce cleanup: remove unused waitCloser. 2016-06-07 07:38:18 +05:30
Harshavardhana ae311aa53b XL: Cleanup, comments and all the updated functions. (#1830) 2016-06-01 16:43:31 -07:00
Harshavardhana c493ab5d0d XL: Bring in sha512 checksum support. (#1797) 2016-05-31 20:23:31 -07:00
Harshavardhana a4a0ea605b XL: Fix GetObject erasure decode issues. (#1793) 2016-05-29 15:38:14 -07:00
Harshavardhana feb337098d XL: bring in new storage API. (#1780) 
Fixes #1771
 2016-05-28 16:12:51 -07:00
Harshavardhana a97230dd56 XL/erasure: Reset dataBlocks to reduce the memory usage. (#1749) 
Fixes #1748
 2016-05-28 15:15:53 -07:00
Krishna Srinivas b38b9fea79 XL/erasure: fix for skipping 0 padding. (#1737) 
Fixes #1736
 2016-05-28 15:15:53 -07:00
Harshavardhana 293d246f95 XL/FS: Rewrite in new format. 2016-05-28 15:15:53 -07:00