This causes natural batching, rather than on every little addition of
JSON formatting.
Before, to listchannels 100,000 channels took 82.48 seconds, after
6.82 seconds.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This lets us benchmark without a valid blockchain.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Header from folded patch 'fixup!_gossipd__dev_option_to_allow_unknown_channels.patch':
fixup! gossipd: dev option to allow unknown channels.
Suggested-by: @cdecker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We push a huge msg for listchannels with the million-channels project.
We need to fix that, but this works around it so we can benchmark.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
For giant nodes, it seems we spend a lot of time memmoving this array.
Normally we'd go for a linked list, but that's actually hard: each
channel has two nodes, so needs two embedded list pointers, and when
iterating there's no good way to figure out which embedded pointer
we'd be using.
So we (ab)use htable; we don't really need an index, but it's good for
cache-friendly iteration (our main operation). We can actually change
to a hybrid later to avoid the extra allocation for small nodes.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
In theory we could allow a db_write-using plugin to have other
hooks/commands by embargoing their other responses until the exclusive
period is over. That would be nice for a 'dbmirrorinfo' command, for
example.
The other option would be to *always* go exclusive on a db_write-using
plugin, so responses can never get intermingled.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
I started by trying to change the current infrastructure, but this is
really the only completely sync hook which makes sense; it needs to avoid
doing the db_transation, as well as waiting, and using a callback is just
overkill.
So with some regret, I open coded it.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
I was tempted to create a new db_select_stmt wrapper type, but that means
a lot of boilerplate around binding, which expects to work with db_prepare
*and* db_select_prepare.
This lets us clearly differentiate between db queries (which don't need to
go to a plugin) and db changes (which do).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
fixup printing methods in devtools/decodemsg such that TLV's can
now be printed as well. here's how you'd use it:
$ ./devtools/decodemsg --tlv opening_tlv 0120001E020202020202020202020202020202020202020202020202020202020202
> WIRE_OPTION_UPFRONT_SHUTDOWN_SCRIPT (size 32):
> shutdown_scriptpubkey=[020202020202020202020202020202020202020202020202020202020202]
This is what all of this has been working towards: ripping out the handwoven
transaction handling. By removing the custom parsing we can finally switch
over to using `wally_tx` as sole representation of transactions in
memory. The commit is a bit larger but it's mostly removing setters and old
references to the input and output fields.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Weaning `onchaind` off its use of the internal bitcoin_tx input and output
fields, since we're going to remove them soon, I promise.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
These are handled internally in the `wally_tx` and do not conform to our usual
tallocated strings that can by inspected using `tal_bytelen`, and we don't
really want to litter our code with whitelisting comments for the
`amount_sat.satoshis` access, so these just do read-only on the fly conversions.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
This is the second to last time I'm touching this file, just need to remove
the `tx->input` and `tx->output` swapping once they are removed.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
The `wally_tx_input`s do not keep track of their input value, which means we
need to track them ourselves if we try to sign these transactions at a later
point in time.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
These are used when grinding the feerate and signing. These are just simple
facades that keep both wally and old style transactions in sync.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
During the migration to `libwally` we want to make absolutely sure that both
transactions are generated identical, and can eventually be switched over.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Rusty Russell
lisa neigut
Christian Decker