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9 Commits

Author SHA1 Message Date
Damjan Marion
2454de2d45 vppinfra: use heap to store bihash data 
Type: improvement
Change-Id: Ifb0fa114414aa2fdc244f964612ca3ac3e29b5e1
Signed-off-by: Damjan Marion <damarion@cisco.com>
 2020-09-30 11:41:16 +00:00
Dave Barach
16e4a4a0ae vppinfra: bihash improvements 
Template instances can allocate BIHASH_KVP_PER_PAGE data records
tangent to the bucket, to remove a dependent read / prefetch.

Template instances can ask for immediate memory allocation, to avoid
several branches in the lookup path.

Clean up l2 fib, gpb plugin codes: use clib_bihash_get_bucket(...)

Use hugepages for bihash allocation arenas

Type: improvement

Signed-off-by: Dave Barach <dave@barachs.net>
Signed-off-by: Damjan Marion <damarion@cisco.com>
Change-Id: I92fc11bc58e48d84e2d61f44580916dd1c56361c
 2020-04-21 10:26:14 +00:00
Dave Barach
2ce28d6014 Add bihash statistics hook 
Example / unit-test in .../src/plugins/unittest/bihash_test.c

Change-Id: I23fd0ba742d65291667a755965aee1a3d3477ca2
Signed-off-by: Dave Barach <dave@barachs.net>
 2019-05-07 15:52:38 +00:00
Dave Barach
b7b929931a c11 safe string handling support 
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab
Signed-off-by: Dave Barach <dave@barachs.net>
 2018-10-23 13:06:46 +00:00
Dave Barach
508498f74d Fine-grained add / delete locking 
Add a bucket-level lock bit. Use a spinlock only when actually
allocating, freeing, or splitting a bucket. Should improve
multi-thread add/del performance.

Change-Id: I3e40e2a8371685457f340d6584dea14e3207f2b0
Signed-off-by: Dave Barach <dave@barachs.net>
 2018-07-20 17:38:35 +00:00
Damjan Marion
09fdf9d074 bihash key compare improvements 
Looks like CPU doesn't like overlaping loads.
This new codes in some cases shows 3-4 clock improvements.

Change-Id: Ia1b49976ad95140c573f892fdc0a32eebbfa06c8
Signed-off-by: Damjan Marion <damarion@cisco.com>
 2018-06-29 07:46:33 +00:00
Dave Barach
3eec2d2759 Disable bihash bucket-level caching 
It'll be interesting to see what the perf trend job
says about this change.

Change-Id: I66307a19a865011ac9660108098874fa1481c895
Signed-off-by: Dave Barach <dave@barachs.net>
 2018-06-13 20:48:40 -04:00
Damjan Marion
1cf9a165fc Vectorized bihash_{48,40,24,16}_8 key compare 
bihash_48_8 case:
Scalar code: 6 clocks
SSE4.2 code: 3 clocks
AVX2 code: 2.27 clocks
AVX512 code: 1.5 clocks

Change-Id: I40700175835a1e7321276e47eadbf9771d3c5a68
Signed-off-by: Damjan Marion <damarion@cisco.com>
 2018-05-25 11:44:43 +00:00
Andrew Yourtchenko
beb50d425d acl-plugin: Recreate the bihash_40_8.h in the proper place 
Change-Id: I30a3df53bc5fe5ab991a657918eb502bd2913440
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
 2017-08-22 20:02:34 +00:00