lightning

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Branch: pull/2803/head

Commit Graph

Author	SHA1	Message	Date
Rusty Russell	b4455d517c	common/node_id: new type. Node ids are pubkeys, but we only use them as pubkeys for routing and checking gossip messages. So we're packing and unpacking them constantly, and wasting some space and time. This introduces a new type, explicitly the SEC1 compressed encoding (33 bytes). We ensure its validity when we load from the db, or get it from JSON. We still use 'struct pubkey' for peer messages, which checks validity. Results from 5 runs, min-max(mean +/- stddev): store_load_msec,vsz_kb,store_rewrite_sec,listnodes_sec,listchannels_sec,routing_sec,peer_write_all_sec 39475-39572(39518+/-36),2880732,41.150000-41.390000(41.298+/-0.085),2.260000-2.550000(2.336+/-0.11),44.390000-65.150000(58.648+/-7.5),32.740000-33.020000(32.89+/-0.093),44.130000-45.090000(44.566+/-0.32) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>	6 years ago

Author

SHA1

Message

Date

Rusty Russell

b4455d517c

common/node_id: new type.

Node ids are pubkeys, but we only use them as pubkeys for routing and checking
gossip messages.  So we're packing and unpacking them constantly, and wasting
some space and time.

This introduces a new type, explicitly the SEC1 compressed encoding
(33 bytes).  We ensure its validity when we load from the db, or get it
from JSON.  We still use 'struct pubkey' for peer messages, which checks
validity.

Results from 5 runs, min-max(mean +/- stddev):
	store_load_msec,vsz_kb,store_rewrite_sec,listnodes_sec,listchannels_sec,routing_sec,peer_write_all_sec
	39475-39572(39518+/-36),2880732,41.150000-41.390000(41.298+/-0.085),2.260000-2.550000(2.336+/-0.11),44.390000-65.150000(58.648+/-7.5),32.740000-33.020000(32.89+/-0.093),44.130000-45.090000(44.566+/-0.32)

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

6 years ago

1 Commits (pull/2803/head)