Commit Graph

184 Commits

Author SHA1 Message Date
tersec 97f7284e51
bump spec refs from v1.0.0 to v1.0.1 and update copyright years (#2357) 2021-02-25 13:37:22 +00:00
Dustin Brody 490e4c7666 don't used sorted() in get_indexed_attestation() 2021-01-30 00:23:02 +02:00
Dustin Brody 281853eee8 rename options and internal structures to doppelgangerFoo and remove probing 2021-01-30 00:17:54 +02:00
Jacek Sieka 5713a3ce4c
performance fixes (#2259)
* performance fixes

* don't mark tree cache as dirty on read-only List accesses
* store only blob in memory for keys and signatures, parse blob lazily
* compare public keys by blob instead of parsing / converting to raw
* compare Eth2Digest using non-constant-time comparison
* avoid some unnecessary validator copying

This branch will in particular speed up deposit processing which has
been slowing down block replay.

Pre (mainnet, 1600 blocks):

```
All time are ms
     Average,       StdDev,          Min,          Max,      Samples,         Test
Validation is turned off meaning that no BLS operations are performed
    3450.269,        0.000,     3450.269,     3450.269,            1, Initialize DB
       0.417,        0.822,        0.036,       21.098,         1400, Load block from database
      16.521,        0.000,       16.521,       16.521,            1, Load state from database
      27.906,       50.846,        8.104,     1507.633,         1350, Apply block
      52.617,       37.029,       20.640,      135.938,           50, Apply epoch block
```

Post:

```
    3502.715,        0.000,     3502.715,     3502.715,            1, Initialize DB
       0.080,        0.560,        0.035,       21.015,         1400, Load block from database
      17.595,        0.000,       17.595,       17.595,            1, Load state from database
      15.706,       11.028,        8.300,      107.537,         1350, Apply block
      33.217,       12.622,       17.331,       60.580,           50, Apply epoch block
```

* more perf fixes

* load EpochRef cache into StateCache more aggressively
* point out security concern with public key cache
* reuse proposer index from state when processing block
* avoid genericAssign in a few more places
* don't parse key when signature is unparseable
* fix `==` overload for Eth2Digest
* preallocate validator list when getting active validators
* speed up proposer index calculation a little bit
* reuse cache when replaying blocks in ncli_db
* avoid a few more copying loops

```
     Average,       StdDev,          Min,          Max,      Samples,         Test
Validation is turned off meaning that no BLS operations are performed
    3279.158,        0.000,     3279.158,     3279.158,            1, Initialize DB
       0.072,        0.357,        0.035,       13.400,         1400, Load block from database
      17.295,        0.000,       17.295,       17.295,            1, Load state from database
       5.918,        9.896,        0.198,       98.028,         1350, Apply block
      15.888,       10.951,        7.902,       39.535,           50, Apply epoch block
       0.000,        0.000,        0.000,        0.000,            0, Database block store
```

* clear full balance cache before processing rewards and penalties

```
All time are ms
     Average,       StdDev,          Min,          Max,      Samples,         Test
Validation is turned off meaning that no BLS operations are performed
    3947.901,        0.000,     3947.901,     3947.901,            1, Initialize DB
       0.124,        0.506,        0.026,      202.370,       363345, Load block from database
      97.614,        0.000,       97.614,       97.614,            1, Load state from database
       0.186,        0.188,        0.012,       99.561,       357262, Advance slot, non-epoch
      14.161,        5.966,        1.099,      395.511,        11524, Advance slot, epoch
       1.372,        4.170,        0.017,      276.401,       363345, Apply block, no slot processing
       0.000,        0.000,        0.000,        0.000,            0, Database block store
```
2021-01-25 13:04:18 +01:00
Jacek Sieka e7f2735271
fix broken metrics during replay (#2090)
* move metrics out of state transition
* add validator count metric
* remove expensive beacon_current_validators, beacon_previous_validators
metrics (they should be reimplemented with cache), add cheap
beacon_active_validators to approximate
* remove unused validator count metrics
* tidy imports/defects
2020-11-27 23:16:13 +01:00
tersec 271df8b604
bump 1.0.0rc-0 spec refs to 1.0.0 (#1974) 2020-11-09 14:18:55 +00:00
Jacek Sieka 95f5f76180
Datatype cleanup (#1953)
* clear up spec todo

* test fix

* remove unnecessary toSszType

* type

* one more
2020-11-04 21:52:47 +00:00
Jacek Sieka 499e5ca991
misc memory and perf fixes (#1899)
* misc memory and perf fixes

* use EpochRef for attestation aggregation
* compress effective balances in memory (medalla unfinalized: 4gb ->
1gb)
* avoid hitting db when rewinding to head or clearance state
* avoid hitting db when blocks can be applied to in-memory state -
speeds up startup considerably
* avoid storing epochref in fork choice
* simplify and speed up beacon block creation flow - avoids state reload
thanks to head rewind optimization
* iterator-based committee and attestation participation help avoid lots
of small memory allocations throughout epoch transition (40% speedup on
epoch processing, for example during startup)

* add constant for threshold
2020-10-22 12:53:33 +02:00
tersec 1994ffe5a0
update 130+ spec references from v0.12.3 to v1.0.0-rc1 (#1854) 2020-10-12 08:59:24 +00:00
tersec 6398a43cc1
update 120+ beacon_chain and validator spec refs from v0.12.2 to v0.12.3 (#1740) 2020-09-24 19:04:10 +02:00
tersec b3b578501a
mark comments documenting functions as a whole as such (#1613) 2020-09-08 08:54:55 +00:00
Jacek Sieka fa1621db46
implement clock disparity for attestation validation (#1568)
This implements disparity, resolving a part of
https://github.com/status-im/nim-beacon-chain/issues/1367

* make BeaconTime a duration for fractional seconds
* factor out attestation/aggregate validation
* simplify recording of queued attestations
* simplify attestation signature check
* fix blocks_received metric
* add some trivial validation tests
* remove unresolved attestation table - attestations for unknown blocks
are dropped instead (cannot verify their signature)
2020-08-27 09:34:12 +02:00
Jacek Sieka 61538fa581 speed up shuffling
Replace shuffling function with zrnt version - `get_shuffled_seq` in
particular puts more strain on the GC by allocating superfluous seq's
which turns out to have a significant impact on block processing (when
replaying blocks for example) - 4x improvement on non-epoch, 1.5x on
epoch blocks (replay is done without signature checking)

Medalla, first 10k slots - pre:

```
Loaded 68973 blocks, head slot 117077
All time are ms
Average,       StdDev,          Min,          Max,      Samples,
Test
Validation is turned off meaning that no BLS operations are performed
76855.848,        0.000,    76855.848,    76855.848,            1,
Initialize DB
1.073,        0.914,        0.071,       12.454,         7831,
Load block from database
31.382,        0.000,       31.382,       31.382,            1,
Load state from database
85.644,       30.350,        3.056,      466.136,         7519,
Apply block
506.569,       91.129,      130.654,      874.786,          312,
Apply epoch block
```

post:

```
Loaded 68973 blocks, head slot 117077
All time are ms
Average,       StdDev,          Min,          Max,      Samples,
Test
Validation is turned off meaning that no BLS operations are performed
72457.303,        0.000,    72457.303,    72457.303,            1,
Initialize DB
1.015,        0.858,        0.070,       11.231,         7831,
Load block from database
28.983,        0.000,       28.983,       28.983,            1,
Load state from database
21.725,       17.461,        2.659,      393.217,         7519,
Apply block
324.012,       33.954,       45.452,      440.532,          312,
Apply epoch block
```
2020-08-21 16:05:10 +03:00
Jacek Sieka 22998fdfd4 avoid double deserialization
When blocks and attestations arrive, they are SSZ-decoded twice: once
for validation and once for processing. This branch enqueues the decoded
block directly for processing, avoiding the second, slow
deserialization.

* move processing of blocks and attestations to queue
* ...and out from beacon_node
* split attestation processing into attestations and aggregates
  * also updates metrics
* clean up logging to better follow the lifetime of gossip: arrival,
validation and processing
* drop attestations and aggregates if there are too many
* try to prioritise blocks and aggregates before single-validator
attestations
2020-08-21 11:46:25 +03:00
Jacek Sieka 7de05efaaf small perf fixes
* don't sort shuffled_validator_indices, just get them directly with
iteration
* grab full epoch of proposer indices while we have the data available -
they'll get cached and reused
* avoid computing active validator set when not used for logging
2020-08-19 14:51:04 +03:00
Jacek Sieka a1bd44f4b0
small spec cleanups (#1501)
* clean up logging a bit
* return error on indexed attestation check
2020-08-13 13:47:06 +00:00
Jacek Sieka 84a501d1ff
remove one cache, add another (#1449)
* remove one cache, add another

This cache removes the need for rewinding in most attestation validation
flow since the attestations come from one of two epochs and must be
targetting a viable block.

Additionally, it also removes all state caches which are less likely to
be used over-all - more metrics are needed to track the rewinding.

On risk is that when chains don't finalize, we'll have lots of epochrefs
in memory meaning lots of validator key databases, most being exactly
the same. This can be addressed in any number of ways. Some of the
memory usage is mitigated by the fact that we previously had lots of big
state caches and now we're keeping only keys instead.

* cleanups

* doc
2020-08-06 19:48:47 +00:00
tersec d97cc35d30
switch 14 v0.12.1 spec refs to v0.12.2 spec refs (#1395) 2020-07-29 12:47:03 +00:00
Jacek Sieka 157ddd2ac4
Fork choice fixes 5 (#1381)
* limit attestations kept in attestation pool

With fork choice updated, the attestation pool only needs to keep track
of attestations that will eventually end up in blocks - we can thus
limit the horizon of attestations that we keep more aggressively.

To get here, we expose getEpochRef which gets metadata about a
particular epochref, and make sure to populate it when a block is added
- this ensures that state rewinds during block addition are minimized.

In addition, we'll use the target root/epoch when validating
attestations - this helps minimize the number of different states that
we need to rewind to, in general.

* remove CandidateChains.justifiedState

unused

* remove BlockPools.Head object

* avoid quadratic quarantine loop

* fix
2020-07-28 13:54:32 +00:00
tersec dad3dd5809
update 111 v0.12.1 beacon chain spec refs to v0.12.2 (#1380) 2020-07-27 18:49:46 +02:00
Jacek Sieka 48cebc7157
spec cleanups (#1379)
* add helper for beacon committee length (used for quickly validating
attestations)
* refactor some attestation checks to do cheap checks early
* validate attestation epoch before computing active validator set
* clean up documentation / comments
* fill state cache on demand
2020-07-27 16:04:44 +00:00
tersec 20a2525390
v0.12.2 beacon chain protocol update (#1378) 2020-07-27 12:59:57 +02:00
tersec 90708a8287
Prefer converting int` to uint64 and switch foo.len.uint64 to .len64 (#1375)
* avoid converting from uint64 to int, and where most feasible, int type conversion at all

* .len.uint64 -> .len64

* fix 32-bit compilation

* try keeping state_sim loop variable/bounds as int for 32-bit Azure

* len64 -> lenu64
2020-07-26 20:55:48 +02:00
Jacek Sieka e0a18a3105
cache beacon committee size calculation (#1363)
* cache beacon committee size calculation

this fixes a bug in get_validator_churn_limit as well

* fix

* make committee counts consistently uint64

mixing feels like the worst of the two worlds
2020-07-23 19:01:07 +02:00
tersec 6b77f3dda5
update compute_subnet_for_attestation() to use https://github.com/ethereum/eth2.0-specs/pull/1876 signature, which isn't in v0.12.1, which works with lookahead (#1346) 2020-07-22 08:04:21 +00:00
tersec 4a9a7be271
faster syncing (#1348)
* maybe faster syncing

* 80-character lines

* remove instrumentation debugEchos; fix target attestation epoch in attestation pool validation

* use the epoch-granularity matching in attestation.addResolved(...)
2020-07-22 09:51:45 +02:00
tersec 26e893ffc2
restore EpochRef and flush statecaches on epoch transitions (#1312)
* restore EpochRef and flush statecaches on epoch transitions

* more targeted cache invalidation

* remove get_empty_per_epoch_cache(); implement simpler but still faster get_beacon_proposer_index()/compute_proposer_index() approach; add some abstraction layer for accessing the shuffled validator indices cache

* reduce integer type conversions

* remove most of rest of integer type conversion in compute_proposer_index()
2020-07-15 12:44:18 +02:00
zah 0be77f9cbc
Restore compilation with custom presets (#1309)
This also assigns precise types to the constants in the minimal
and mainnet presets in order to reduce the chance of compilation
errors when custom presets are used (previously, only the custom
presets have precisely assigned types for the constants).
2020-07-13 16:44:58 +02:00
tersec 5d5957fd7e
fix attestation handling bottlenecks in slot processing and quadratic-time inclusion delay rewards/palties in epoch processing; create infrastructure for dynamically (un)subscribing to/from attestation topics (#1294) 2020-07-10 09:24:04 +00:00
Dustin Brody db870fead4 update 20 beacon chain protocol spec refs 2020-06-18 08:39:28 +00:00
Jacek Sieka 5c25d23ef1 eth2hash -> eth2digest
hash in nim is the insecure hash-map helper - might as well use `digest`
consistently to mark the difference
2020-06-16 13:30:21 +00:00
Dustin Brody 1d1e90adf4 Update 36 spec refs from 0.11.x to 0.12.1 2020-06-12 19:41:03 +00:00
Viktor Kirilov e7febc2e2b can finalize successfully with external VCs! + some other cleanup 2020-06-10 13:50:50 +03:00
Dustin Brody 3cb7896bab 12x speedup on state sim with 100k validators sans BLS by caching get_beacon_proposer_index(...) 2020-06-04 17:07:51 +00:00
tersec b7bb62d48b
use shuffled validator cache in more places; cleanups (#1095) 2020-06-03 07:42:08 +02:00
Dustin Brody 1a6b83a15f cleanups 2020-06-01 19:45:21 +00:00
tersec a327e8581b
switch state transition caching to match EpochRef (#1089)
* switch state transition caching usage to shuffled active validator indices to match EpochRef

* refactor the EpochRef -> StateCache transformation; elide pointless mapIt

* limit state passed between get_beacon_committee(...) and compute_committee(...)

* tweaks
2020-06-01 09:44:50 +02:00
tersec b5f45db5e9
keep cache of per-epoch items in block pool (#1068)
* plumbing between block pool and state transition functions around active validator indices and committees

* have shared epochrefs followed by blockref tree while allowing for skipped slots

* factor out the epoch info extraction; document how the EpochRef follows forks
2020-05-29 08:10:20 +02:00
Viktor Kirilov cefd525ab3 more work on the BN/VC split
- fixed comments from the last review
- getting more data VIA RPC, moved some code back into the BN only
- attestation duties being requested as well
2020-05-28 13:01:42 +03:00
Dustin Brody 0929d90d93 unexport candidate_chains.init; some spec version bumps 2020-05-26 05:06:37 +00:00
Viktor Kirilov 8760494c72 first batch of work towards the VC/BN split:
- we have a new binary which connects via RPC to the respective BN and has an internal clock - waking it up on every slot
- the BN has a new option called --external-validators and currently in order to have the VC binaries to run we need to pass EXTERNAL_VALIDATORS=yes to make
- factored some code out of beacon_node.nim for easier reuse in validator_api.nim and validator_client.nim
- the VC loads its associated private keys from the datadir for its BN
- most of the validator API calls have been implemented as a stub.
- the VC polls its BN at the start of each epoch - getting a list of all active validators for the current epoch - and then continues to request blocks and sign them with its appropriate validators when necessary
2020-05-25 16:23:15 +03:00
Dustin Brody 3fa2f70853 update all remaining beacon chain spec references from v0.11.1 and v0.11.2 to v0.11.3 2020-05-20 08:48:18 +00:00
Zahary Karadjov 740b76d152 Spec-compliant implementation of Eth1 monitoring; Eth1-enabled local sim
BEWARE! This commit will trigger a stack overflow during local sim
2020-04-26 13:04:53 +03:00
tersec 65353bab76
add another check for inconsistent aggregation and committee length (#927)
* add another check for inconsistent aggregation and committee length, since ncli_transition bypasses process_attestation(...)/check_attestation(...) and calls almost directly into process_epoch(...)

* bump validator functions to v0.11.1 spec references

* bump some spec references to v0.11.1

* poke
2020-04-24 09:16:40 +02:00
Jacek Sieka ed74770451
spec: regulate exceptions (#913)
* spec: regulate exceptions

* a few more simple raises
2020-04-22 07:53:02 +02:00
Dustin Brody d559f4ee89 create distinct CommitteeIndex type 2020-04-15 09:59:49 +00:00
tersec 31bf8fa408
remove all but one UnusedImport warning (#881)
* remove all but one UnusedImport warning

* bump a few more spec version references from v0.10.1 to v0.11.1

* more v0.10.1 spec reference updates/removals

* yet more v0.10.1 spec reference updates
2020-04-10 16:06:24 +02:00
tersec ea59f2ecf2
comments-only changes: update a bunch of v0.10.1 spec references to v0.11.0 and explain rationale for extended validation design in code (#847) 2020-04-01 11:41:39 +00:00
tersec daabb1b5b2
complete all (non-semantic, comment-only) 0.11.0 -> 0.11.1 beacon chain spec updates, mark all beacon chain v0.11.0 spec references as v0.11.1, and remove now unnecessary/unused UpdateFlags vars from 4 test fixtures (#841) 2020-03-30 23:40:24 +00:00
Dustin Brody 313109c743 align process_block(...) name with spec; fix beacon chain proposer index generation when some validators aren't active to fix the two regressing 0.11.0 block sanity tests 2020-03-17 12:06:56 +02:00