Mercurial > hg
view tests/test-patchbomb-tls.t @ 47120:7109a38830c9
dirstate-tree: Fold "tracked descendants" counter update in main walk
For the purpose of implementing `has_tracked_dir` (which means "has tracked
descendants) without an expensive sub-tree traversal, we maintaing a counter
of tracked descendants on each "directory" node of the tree-shaped dirstate.
Before this changeset, mutating or inserting a node at a given path would
involve:
* Walking the tree from root through ancestors to find the node or the spot
where to insert it
* Looking at the previous node if any to decide what counter update is needed
* Performing any node mutation
* Walking the tree *again* to update counters in ancestor nodes
When profiling `hg status` on a large repo, this second walk takes times
while loading a the dirstate from disk.
It turns out we have enough information to decide before he first tree walk
what counter update is needed. This changeset merges the two walks, gaining
~10% of the total time for `hg update` (in the same hyperfine benchmark as
the previous changeset).
---
Profiling was done by compiling with this `.cargo/config`:
[profile.release]
debug = true
then running with:
py-spy record -r 500 -n -o /tmp/hg.json --format speedscope -- \
./hg status -R $REPO --config experimental.dirstate-tree.in-memory=1
then visualizing the recorded JSON file in https://www.speedscope.app/
Differential Revision: https://phab.mercurial-scm.org/D10554
author | Simon Sapin <simon.sapin@octobus.net> |
---|---|
date | Fri, 30 Apr 2021 14:22:14 +0200 |
parents | 8f50dc096cf4 |
children | 5644f6286618 |
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#require serve ssl Set up SMTP server: $ CERTSDIR="$TESTDIR/sslcerts" $ cat "$CERTSDIR/priv.pem" "$CERTSDIR/pub.pem" >> server.pem $ "$PYTHON" "$TESTDIR/dummysmtpd.py" -p $HGPORT --pid-file a.pid -d \ > --tls smtps --certificate `pwd`/server.pem listening at localhost:$HGPORT (?) $ cat a.pid >> $DAEMON_PIDS Set up repository: $ hg init t $ cd t $ cat <<EOF >> .hg/hgrc > [extensions] > patchbomb = > [email] > method = smtp > [smtp] > host = localhost > port = $HGPORT > tls = smtps > EOF $ echo a > a $ hg commit -Ama -d '1 0' adding a Utility functions: $ DISABLECACERTS= $ try () { > hg email $DISABLECACERTS -f quux -t foo -c bar -r tip "$@" > } Our test cert is not signed by a trusted CA. It should fail to verify if we are able to load CA certs: #if no-defaultcacertsloaded $ try this patch series consists of 1 patches. (an attempt was made to load CA certificates but none were loaded; see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this error) (?i)abort: .*?certificate.verify.failed.* (re) [255] #endif #if defaultcacertsloaded $ try this patch series consists of 1 patches. (the full certificate chain may not be available locally; see "hg help debugssl") (windows !) (?i)abort: .*?certificate.verify.failed.* (re) [255] #endif $ DISABLECACERTS="--config devel.disableloaddefaultcerts=true" Without certificates: $ try --debug this patch series consists of 1 patches. (using smtps) sending mail: smtp host localhost, port * (glob) (verifying remote certificate) abort: unable to verify security of localhost (no loaded CA certificates); refusing to connect (see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this error or set hostsecurity.localhost:fingerprints=sha256:20:de:b3:ad:b4:cd:a5:42:f0:74:41:1c:a2:70:1e:da:6e:c0:5c:16:9e:e7:22:0f:f1:b7:e5:6e:e4:92:af:7e to trust this server) [150] With global certificates: $ try --debug --config web.cacerts="$CERTSDIR/pub.pem" this patch series consists of 1 patches. (using smtps) sending mail: smtp host localhost, port * (glob) (verifying remote certificate) sending [PATCH] a ... With invalid certificates: $ try --config web.cacerts="$CERTSDIR/pub-other.pem" this patch series consists of 1 patches. (the full certificate chain may not be available locally; see "hg help debugssl") (windows !) (?i)abort: .*?certificate.verify.failed.* (re) [255] $ cd ..