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author | Sebastian Falbesoner <sebastian.falbesoner@gmail.com> | 2019-10-13 02:50:08 +0200 |
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committer | Sebastian Falbesoner <sebastian.falbesoner@gmail.com> | 2019-10-13 02:50:08 +0200 |
commit | 581c9be0d8bff46cd68bd6a3bf72f22d11c09aea (patch) | |
tree | eada16bc40eb4f1e877e9cfc9ba9ebbc2fdb4f48 /doc/developer-notes.md | |
parent | 561a7d30478b82f5d46dcf0f16e864a9608004f4 (diff) | |
download | bitcoin-581c9be0d8bff46cd68bd6a3bf72f22d11c09aea.tar.xz |
test: speedup wallet_backup by whitelisting peers (immediate tx relay)
approaches part of #16613 ("Functional test suite bottlenecks")
The majority of the test time is spent in sync_mempools() after sending to
addresses, i.e. the bottleneck is in relaying transactions. By whitelisting the
peers via -whitelist, the inventory is transmissioned immediately rather than
on average every 5 seconds, speeding up the test by at least a factor of two:
before:
$ time ./wallet_backup.py
real 2m2.523s
user 0m6.093s
sys 0m2.454s
with this PR:
$ time ./wallet_backup_with_whitelist.py
real 0m36.570s
user 0m5.365s
sys 0m1.696s
Note that the test is not deterministic (the sendtoaddress RPC in function
one_send() is executed with a probability of 50%), hence the times could vary
between individual runs.
Diffstat (limited to 'doc/developer-notes.md')
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