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77 Commits

Author SHA1 Message Date
Jeffrey Wilcke 25ac04a444 Merge pull request #3153 from fjl/trie-unload-fix 
trie: improve cache unloading mechanism
 2016-10-19 13:35:49 +02:00
Péter Szilágyi 2bb5ec1e41
cmd/geth, trie: track and report trie cache misses 2016-10-19 14:12:35 +03:00
Felix Lange 8d56bf5ceb trie: ensure dirty flag is unset for embedded child nodes 
This was caught by the new invariant check.
 2016-10-18 04:57:47 +02:00
Felix Lange 177cab5fe7 trie: ensure resolved nodes stay loaded 
Commit 40cdcf1183 broke the optimisation which kept nodes resolved
during Get in the trie. The decoder assigned cache generation 0
unconditionally, causing resolved nodes to get flushed on Commit.

This commit fixes it and adds two tests.
 2016-10-18 04:57:47 +02:00
Felix Lange 187d6a66a5 trie: avoid loading the root node twice 
New checks whether the root node is present by loading it from the
database. Keep the node around instead of discarding it.
 2016-10-18 04:57:47 +02:00
Felix Lange 2cd7a0395d trie: fix regression that linked all downloaded nodes together 
The trie sync code links subtries using pointers into node structs.
Since commit 40cdcf1183 nodes are no longer copied when unpacking from
an interface value, causing all nodes to get linked up as the sync
progresses. Fix it by breaking the pointer chain with an explicit copy.
 2016-10-15 00:42:52 +02:00
Felix Lange 40cdcf1183 trie, core/state: improve memory usage and performance (#3135) 
* trie: store nodes as pointers

This avoids memory copies when unwrapping node interface values.

name      old time/op  new time/op  delta
Get        388ns ± 8%   215ns ± 2%  -44.56%  (p=0.000 n=15+15)
GetDB      363ns ± 3%   202ns ± 2%  -44.21%  (p=0.000 n=15+15)
UpdateBE  1.57µs ± 2%  1.29µs ± 3%  -17.80%  (p=0.000 n=13+15)
UpdateLE  1.92µs ± 2%  1.61µs ± 2%  -16.25%  (p=0.000 n=14+14)
HashBE    2.16µs ± 6%  2.18µs ± 6%     ~     (p=0.436 n=15+15)
HashLE    7.43µs ± 3%  7.21µs ± 3%   -2.96%  (p=0.000 n=15+13)

* trie: close temporary databases in GetDB benchmark

* trie: don't keep []byte from DB load around

Nodes decoded from a DB load kept hashes and values as sub-slices of
the DB value. This can be a problem because loading from leveldb often
returns []byte with a cap that's larger than necessary, increasing
memory usage.

* trie: unload old cached nodes

* trie, core/state: use cache unloading for account trie

* trie: use explicit private flags (fixes Go 1.5 reflection issue).

* trie: fixup cachegen overflow at request of nick

* core/state: rename journal size constant
 2016-10-14 19:04:33 +03:00
Felix Lange c3a77d6268 trie: fix delete bug for values contained in fullNode 
Delete crashed if a fullNode contained a valueNode directly. This bug is
very unlikely to occur with SecureTrie, but can happen with regular
tries. This commit also introduces a randomised test which triggers all
trie operations, which should prevent such bugs in the future.

Credit for finding this bug goes to Github user @rjl493456442.
 2016-09-29 22:53:59 +02:00
Felix Lange ba8c4c6b1a trie: remove dependency on package crypto 
Package crypto needs cgo, which is inconvenient for some build
configurations.
 2016-09-29 22:23:24 +02:00
Péter Szilágyi 710435b51b core, eth, trie: reuse trie journals in all our code 2016-09-28 11:27:31 +03:00
Felix Lange cd791bd855 core, trie: replace state caches with trie journal 2016-09-28 11:27:28 +03:00
Péter Szilágyi 1d5d21726a Merge pull request #2627 from karalabe/concurrent-head-sync 
eth/downloader, trie: pull head state concurrently with chain
 2016-05-31 11:52:16 +03:00
Péter Szilágyi 4f1d92b332 eth/downloader, trie: pull head state concurrently with chain 2016-05-27 14:26:00 +03:00
Péter Szilágyi 748d1c171d core, core/state, trie: enterprise hand-tuned multi-level caching 2016-05-26 16:33:09 +03:00
Felix Lange 6fdd0893c3 all: fix go vet warnings 2016-04-15 11:17:27 +02:00
Felix Lange d04a2e7557 all: update license information 2016-04-15 09:48:05 +02:00
Péter Szilágyi e90958cd29 cmd, eth, ethdb, node: prioritise chaindata for resources, bump cache 2016-03-09 10:33:39 +02:00
Jeffrey Wilcke 483feb0d3f Merge pull request #2242 from jimenezrick/upstream-crypto 
Closes #2241: Use Keccak-256 from golang.org/x/crypto/sha3 and mention explicitly
 2016-02-24 12:57:57 +01:00
Ricardo Catalinas Jiménez 436fc8d76a all: Rename crypto.Sha3{,Hash}() to crypto.Keccak256{,Hash}() 
As we aren't really using the standarized SHA-3
 2016-02-21 22:34:34 +00:00
Péter Szilágyi b8d59d9c98 core/state, trie: switch iterator panics to error fields 2016-02-16 12:37:00 +02:00
Péter Szilágyi 151c7bef41 core/state, trie: node iterator reports parent hashes too 2016-02-16 12:21:08 +02:00
Péter Szilágyi 5a057a8ded core/state, trie: surface iterator entry hashes 2016-02-16 12:21:08 +02:00
Péter Szilágyi 7e29b0b5b4 core/state, trie: add node iterator, test state/trie sync consistency 2016-02-16 12:21:08 +02:00
Péter Szilágyi f3d4ce0d16 core/state, ethdb, trie: test intermediate secure key leak, fix memdb bug 2016-01-20 16:06:28 +02:00
Péter Szilágyi 886478b18b core/state, trie: don't leak database writes before commit 2016-01-20 12:09:24 +02:00
zsfelfoldi ef422ee1e1 light: implemented odr-capable trie and state structures 2015-12-17 16:07:54 +01:00
zsfelfoldi 52904ae32f trie: added error handling 
Created alternate versions of Trie and SecureTrie functions that can return a MissingNodeError (used by ODR services)
 2015-12-01 01:38:32 +01:00
Péter Szilágyi 5b0ee8ec30 core, eth, trie: fix data races and merge/review issues 2015-10-21 16:49:55 +03:00
Péter Szilágyi b97e34a8e4 eth/downloader: concurrent receipt and state processing 2015-10-19 10:03:10 +03:00
Péter Szilágyi ab27bee25a core, eth, trie: direct state trie synchronization 2015-10-19 10:03:09 +03:00
Felix Lange c1a352c108 trie: add merkle proof functions 2015-09-22 22:57:37 +02:00
Felix Lange 565d9f2306 core, trie: new trie 2015-09-22 22:53:49 +02:00
Felix Lange 6b91a4abe5 trie: improve benchmarks 2015-09-22 22:49:27 +02:00
Jeffrey Wilcke b8ca0a830e eth, trie: removed key prefixing from state entries & merge db fix 
Fixed database merge strategy to use the correct database. Due to a copy
paste fail when doing type evaluation the same database was being
iterated (chain), all others were ignored.

Removed state prefixing because {H(code): code} is stored in the same
database as the rest of the state.
 2015-08-13 20:44:03 +02:00
Jeffrey Wilcke a23478c0be core, eth, trie, xeth: merged state, chain, extra databases in one 2015-08-07 22:29:02 +02:00
Ethan Buchman 46c9594081 trie: run codec tests, add benchmarks, faster 2015-08-06 14:04:16 -04:00
Ethan Buchman c1d516546d faster hex-prefix codec and string -> []byte 2015-08-06 03:17:59 -04:00
Jeffrey Wilcke 1fad8798ec Merge pull request #1515 from fjl/license-fixes 
all: fix license headers one more time
 2015-07-28 04:29:42 -07:00
Felix Lange bfbcfbe4a9 all: fix license headers one more time 
I forgot to update one instance of "go-ethereum" in commit 3f047be5a.
 2015-07-23 18:35:11 +02:00
Jeffrey Wilcke 8f56eea77d ethdb, trie: removed RLE compression 2015-07-23 12:57:33 +02:00
Felix Lange 3f047be5aa all: update license headers to distiguish GPL/LGPL 
All code outside of cmd/ is licensed as LGPL. The headers
now reflect this by calling the whole work "the go-ethereum library".
 2015-07-22 18:51:45 +02:00
Felix Lange bdae4fd573 all: add some godoc synopsis comments 2015-07-07 14:12:45 +02:00
Felix Lange ea54283b30 all: update license information 2015-07-07 14:12:44 +02:00
Jeffrey Wilcke 47460b3b4a trie: removed shallow copies (thanks to @fjl) 2015-07-04 02:51:37 +02:00
Jeffrey Wilcke 0a1ff68c11 trie: dirty tracking 2015-07-04 02:51:36 +02:00
obscuren c850c41ec1 trie: Implemented a batch write approach for flushing 2015-06-29 18:51:48 +02:00
obscuren a40a91d60f trie: fixed tests 2015-06-21 17:08:47 +02:00
obscuren c590b505ed core, ethdb, trie: validate database errors 2015-06-21 16:59:15 +02:00
obscuren bbe795455a Secure trie shakey / key matching 2015-03-24 15:14:03 +01:00
obscuren cf45b939a0 fixed tests 2015-03-19 14:31:14 +01:00