Commit graph

37 commits

Author SHA1 Message Date
Riccardo Spagni
e4d1674e8c
0.15.0.0 release engineering 2019-11-02 17:21:52 +02:00
moneromooo-monero
8330e772f1
monerod can now sync from pruned blocks
If the peer (whether pruned or not itself) supports sending pruned blocks
to syncing nodes, the pruned version will be sent along with the hash
of the pruned data and the block weight. The original tx hashes can be
reconstructed from the pruned txes and theur prunable data hash. Those
hashes and the block weights are hashes and checked against the set of
precompiled hashes, ensuring the data we received is the original data.
It is currently not possible to use this system when not using the set
of precompiled hashes, since block weights can not otherwise be checked
for validity.

This is off by default for now, and is enabled by --sync-pruned-blocks
2019-09-27 00:10:37 +00:00
Riccardo Spagni
a69dc81844
prep for 0.14.1.1 2019-07-17 22:25:53 +02:00
Riccardo Spagni
633f1542e2
prep for 0.14.1 release 2019-06-14 16:16:52 +02:00
Riccardo Spagni
4c91eb23a0
Merge pull request #5061
1f2930ce Update 2019 copyright (binaryFate)
2019-03-17 17:49:30 +02:00
binaryFate
1f2930ce0b Update 2019 copyright 2019-03-05 22:05:34 +01:00
Riccardo Spagni
f3b368c659
update checkpoints hash 2019-03-05 13:06:36 +02:00
moneromooo-monero
434a147b57
blocks: fix checkpoint code generation on OpenBSD
Its od outputs small decimals with leading 0, which means octal in C
2018-12-25 19:11:39 +00:00
xiphon
fd62b6e79f blocks: use auto-generated .c files instead of 'LD -r -b binary' 2018-10-22 01:12:00 +03:00
Riccardo Spagni
ac5674524a
Revert "Merge pull request #4472"
This reverts commit 79d46c4d55, reversing
changes made to c9fc61dbb5.
2018-10-08 21:39:54 +02:00
xiphon
02d3ef7bda blocks: use auto-generated .c files instead of 'LD -r -b binary' 2018-10-04 00:01:09 +00:00
TheCharlatan
2fbf38ee91 Fix 32bit depends builds
Add architecture flags when cmake invokes gcc manually.
Add 32bit to Travis.
2018-09-29 22:16:42 +02:00
Riccardo Spagni
d9f666d78c
update checkpoints.dat 2018-09-23 09:51:15 +02:00
Riccardo Spagni
95ccf508cd update checkpoints.dat for point release 2018-06-02 14:31:37 +02:00
Riccardo Spagni
45975fd8eb update checkpoints 2018-05-23 21:20:15 +02:00
Riccardo Spagni
3fedd51d26
update checkpoints.dat to block 1532400 2018-03-18 16:42:20 +02:00
stoffu
af773211cb
Stagenet 2018-03-05 11:55:05 +09:00
xmr-eric
18216f19dd Update 2018 copyright 2018-01-26 10:03:20 -05:00
moneromooo-monero
776b44f17b
Add misc hardening flags to the cmake machinery
See https://wiki.debian.org/Hardening#User_Space
2017-12-31 14:26:12 +00:00
moneromooo-monero
7adceee634
precomputed block hashes are now in blocks of N (currently 256)
This shaves a lot of space off binaries
2017-09-18 16:29:00 +01:00
Riccardo Spagni
ed730511dc
update checkpoints.dat 2017-09-06 09:18:40 +02:00
Howard Chu
3964b30f2d
Add dependency for blocksdat.o
To make sure it gets regenerated whenever checkpoints.dat changes
Likewise for blocks.o and testnet_blocks.o
2017-03-04 22:02:10 +00:00
Riccardo Spagni
0abddd648d
fix broken checkpoints.dat 2017-02-22 23:10:05 +02:00
Riccardo Spagni
04a50a7ea4
update checkpoints.dat 2017-02-21 19:52:27 +02:00
Riccardo Spagni
c3599fa7b9
update copyright year, fix occasional lack of newline at line end 2017-02-21 19:38:18 +02:00
kenshi84
8027ce0c75 extract some basic code from libcryptonote_core into libcryptonote_basic 2017-02-08 22:45:15 +09:00
Riccardo Spagni
117194a397
update checkpoints 2016-12-13 00:26:25 +02:00
Riccardo Spagni
c69b8a188b
update block headers 2016-09-18 19:05:47 +02:00
Riccardo Spagni
e4c2e9e5e0
baked-in block headers now go all the way up to 1 million. 1 MILLION 2016-03-16 21:59:21 +02:00
Riccardo Spagni
8689014eda
switch default utilities DB to lmdb, update checkpoints.dat 2016-03-12 21:09:44 +02:00
Howard Chu
da0bce3472 Use CMAKE_LINKER, not hardcoded "ld" 2016-01-03 08:22:38 +00:00
Riccardo Spagni
de03926850
updated copyright year 2015-12-31 08:39:56 +02:00
warptangent
725acc7f17
Replace tabs with two spaces for consistency with rest of codebase
Remove trailing whitespace in same files.
2015-12-15 06:22:06 -08:00
Riccardo Spagni
4d74510a4a
checkpoints update 2015-11-21 15:11:21 +02:00
moneromooo-monero
b13e7f284b
blockchain_export can now export to a blocks.dat format
Also make the number of blocks endian independant, and add
support for testnet
2015-10-17 00:11:26 +01:00
NoodleDoodleNoodleDoodleNoodleDoodleNoo
2e293a563e Fixed binary size issue due to embedded checkpoint data.
Fixed OSX compilation issues due to random lmdb resize points.
Fixed infinite loop bug when calling core::get_block_template(..).
2015-07-15 23:20:20 -07:00
NoodleDoodleNoodleDoodleNoodleDoodleNoo
e5d2680094 ** CHANGES ARE EXPERIMENTAL (FOR TESTING ONLY)
Bockchain:
1. Optim: Multi-thread long-hash computation when encountering groups of blocks.
2. Optim: Cache verified txs and return result from cache instead of re-checking whenever possible.
3. Optim: Preload output-keys when encoutering groups of blocks. Sort by amount and global-index before bulk querying database and multi-thread when possible.
4. Optim: Disable double spend check on block verification, double spend is already detected when trying to add blocks.
5. Optim: Multi-thread signature computation whenever possible.
6. Patch: Disable locking (recursive mutex) on called functions from check_tx_inputs which causes slowdowns (only seems to happen on ubuntu/VMs??? Reason: TBD)
7. Optim: Removed looped full-tx hash computation when retrieving transactions from pool (???).
8. Optim: Cache difficulty/timestamps (735 blocks) for next-difficulty calculations so that only 2 db reads per new block is needed when a new block arrives (instead of 1470 reads).

Berkeley-DB:
1. Fix: 32-bit data errors causing wrong output global indices and failure to send blocks to peers (etc).
2. Fix: Unable to pop blocks on reorganize due to transaction errors.
3. Patch: Large number of transaction aborts when running multi-threaded bulk queries.
4. Patch: Insufficient locks error when running full sync.
5. Patch: Incorrect db stats when returning from an immediate exit from "pop block" operation.
6. Optim: Add bulk queries to get output global indices.
7. Optim: Modified output_keys table to store public_key+unlock_time+height for single transaction lookup (vs 3)
8. Optim: Used output_keys table retrieve public_keys instead of going through output_amounts->output_txs+output_indices->txs->output:public_key
9. Optim: Added thread-safe buffers used when multi-threading bulk queries.
10. Optim: Added support for nosync/write_nosync options for improved performance (*see --db-sync-mode option for details)
11. Mod: Added checkpoint thread and auto-remove-logs option.
12. *Now usable on 32-bit systems like RPI2.

LMDB:
1. Optim: Added custom comparison for 256-bit key tables (minor speed-up, TBD: get actual effect)
2. Optim: Modified output_keys table to store public_key+unlock_time+height for single transaction lookup (vs 3)
3. Optim: Used output_keys table retrieve public_keys instead of going through output_amounts->output_txs+output_indices->txs->output:public_key
4. Optim: Added support for sync/writemap options for improved performance (*see --db-sync-mode option for details)
5. Mod: Auto resize to +1GB instead of multiplier x1.5

ETC:
1. Minor optimizations for slow-hash for ARM (RPI2). Incomplete.
2. Fix: 32-bit saturation bug when computing next difficulty on large blocks.

[PENDING ISSUES]
1. Berkely db has a very slow "pop-block" operation. This is very noticeable on the RPI2 as it sometimes takes > 10 MINUTES to pop a block during reorganization.
   This does not happen very often however, most reorgs seem to take a few seconds but it possibly depends on the number of outputs present. TBD.
2. Berkeley db, possible bug "unable to allocate memory". TBD.

[NEW OPTIONS] (*Currently all enabled for testing purposes)
1. --fast-block-sync arg=[0:1] (default: 1)
	a. 0 = Compute long hash per block (may take a while depending on CPU)
	b. 1 = Skip long-hash and verify blocks based on embedded known good block hashes (faster, minimal CPU dependence)
2. --db-sync-mode arg=[[safe|fast|fastest]:[sync|async]:[nblocks_per_sync]] (default: fastest:async:1000)
	a. safe = fdatasync/fsync (or equivalent) per stored block. Very slow, but safest option to protect against power-out/crash conditions.
	b. fast/fastest = Enables asynchronous fdatasync/fsync (or equivalent). Useful for battery operated devices or STABLE systems with UPS and/or systems with battery backed write cache/solid state cache.
	Fast    - Write meta-data but defer data flush.
	Fastest - Defer meta-data and data flush.
	Sync    - Flush data after nblocks_per_sync and wait.
	Async   - Flush data after nblocks_per_sync but do not wait for the operation to finish.
3. --prep-blocks-threads arg=[n] (default: 4 or system max threads, whichever is lower)
        Max number of threads to use when computing long-hash in groups.
4. --show-time-stats arg=[0:1] (default: 1)
	Show benchmark related time stats.
5. --db-auto-remove-logs arg=[0:1] (default: 1)
	For berkeley-db only. Auto remove logs if enabled.

**Note: lmdb and berkeley-db have changes to the tables and are not compatible with official git head version.
	At the moment, you need a full resync to use this optimized version.

[PERFORMANCE COMPARISON]
**Some figures are approximations only.
Using a baseline machine of an i7-2600K+SSD+(with full pow computation):
1. The optimized lmdb/blockhain core can process blocks up to 585K for ~1.25 hours + download time, so it usually takes 2.5 hours to sync the full chain.
2. The current head with memory can process blocks up to 585K for ~4.2 hours + download time, so it usually takes 5.5 hours to sync the full chain.
3. The current head with lmdb can process blocks up to 585K for ~32 hours + download time and usually takes 36 hours to sync the full chain.

Averate procesing times (with full pow computation):
lmdb-optimized:
1. tx_ave = 2.5 ms / tx
2. block_ave = 5.87 ms / block
memory-official-repo:
1. tx_ave = 8.85 ms / tx
2. block_ave = 19.68 ms / block
lmdb-official-repo (0f4a036437)
1. tx_ave = 47.8 ms / tx
2. block_ave = 64.2 ms / block

**Note: The following data denotes processing times only (does not include p2p download time)
lmdb-optimized processing times (with full pow computation):
1. Desktop,  Quad-core / 8-threads 2600k  (8Mb) - 1.25 hours processing time (--db-sync-mode=fastest:async:1000).
2. Laptop,   Dual-core / 4-threads U4200  (3Mb) - 4.90 hours processing time (--db-sync-mode=fastest:async:1000).
3. Embedded, Quad-core / 4-threads Z3735F (2x1Mb) - 12.0 hours processing time (--db-sync-mode=fastest:async:1000).

lmdb-optimized processing times (with per-block-checkpoint)
1. Desktop,  Quad-core / 8-threads 2600k  (8Mb) - 10 minutes processing time (--db-sync-mode=fastest:async:1000).

berkeley-db optimized processing times (with full pow computation)
1. Desktop, Quad-core / 8-threads 2600k  (8Mb) - 1.8 hours processing time (--db-sync-mode=fastest:async:1000).
2. RPI2. Improved from estimated 3 months(???) into 2.5 days (*Need 2AMP supply + Clock:1Ghz + [usb+ssd] to achieve this speed) (--db-sync-mode=fastest:async:1000).

berkeley-db optimized processing times (with per-block-checkpoint)
1. RPI2. 12-15 hours (*Need 2AMP supply + Clock:1Ghz + [usb+ssd] to achieve this speed) (--db-sync-mode=fastest:async:1000).
2015-07-15 23:20:16 -07:00