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Author	SHA1	Message	Date
niftynei	c50f377a85	psbt: pull out changeset logic into common, update API Greatly simplify the changeset API. Instead of 'diff' we simply generate the changes. Also pulls up the 'next message' method, as at some point the interactive tx protocol will be used for other things as well (splices/closes etc) Suggested-By: @rustyrussell	2020-09-09 19:54:20 +09:30
ZmnSCPxj jxPCSnmZ	34bf0133f2	onchaind/onchaind_wire.csv: Propagate minimum relay fee to onchaind.	2020-09-09 12:38:19 +09:30
Rusty Russell	daba3e7deb	common/gossmap: helper to map the gossip store. I went overboard on optimization. I am so sorry: 1. Squeezed channel min/max into 16 bits. 2. Uses mmap and leaves node_ids in the file. 3. Uses offsets instead of pointers where possible. 4. Uses custom free-list to allocate inside arrays. 5. Ignores our autogenerated marshalling code in favor of direct derefs. 6. Carefully aligns everything so we use minimal ram. The result is that the current gossip_store: - load time (-O3 -flto laptop): 40msec - load time (-g laptop i.e. DEVELOPER=0): 60msec - load time (-O0 laptop i.e. DEVELOPER=1): 110msec - Total memory: 2.6MB: - 1.5MB for the array of channels - 512k for the channel htable to map scid -> channel. - 320k for the node htable to map nodeid -> node. - 192k for the array of channels inside each node - 94k for the array of nodes Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>	2020-08-28 10:56:50 +09:30

Author

SHA1

Message

Date

niftynei

c50f377a85

psbt: pull out changeset logic into common, update API

Greatly simplify the changeset API. Instead of 'diff' we simply generate
the changes.

Also pulls up the 'next message' method, as at some point the
interactive tx protocol will be used for other things as well
(splices/closes etc)

Suggested-By: @rustyrussell

2020-09-09 19:54:20 +09:30

ZmnSCPxj jxPCSnmZ

34bf0133f2

onchaind/onchaind_wire.csv: Propagate minimum relay fee to onchaind.

2020-09-09 12:38:19 +09:30

Rusty Russell

daba3e7deb

common/gossmap: helper to map the gossip store.

I went overboard on optimization.  I am so sorry:
1. Squeezed channel min/max into 16 bits.
2. Uses mmap and leaves node_ids in the file.
3. Uses offsets instead of pointers where possible.
4. Uses custom free-list to allocate inside arrays.
5. Ignores our autogenerated marshalling code in favor of direct derefs.
6. Carefully aligns everything so we use minimal ram.

The result is that the current gossip_store:
 - load time (-O3 -flto laptop): 40msec
 - load time (-g laptop i.e. DEVELOPER=0): 60msec
 - load time (-O0 laptop i.e. DEVELOPER=1): 110msec
 - Total memory: 2.6MB:
   - 1.5MB for the array of channels
   - 512k for the channel htable to map scid -> channel.
   - 320k for the node htable to map nodeid -> node.
   - 192k for the array of channels inside each node
   - 94k for the array of nodes

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

2020-08-28 10:56:50 +09:30

3 commits