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view tests/test-hgweb-csp.t @ 42743:8c9a6adec67a
rust-discovery: using the children cache in add_missing
The DAG range computation often needs to get back to very old
revisions, and turns out to be disproportionately long, given
that the end goal is to remove the descendents of the given
missing revisons from the undecided set.
The fast iteration capabilities available in the Rust case make
it possible to avoid the DAG range entirely, at the cost of
precomputing the children cache, and to simply iterate on
children of the given missing revisions.
This is a case where staying on the same side of the interface
between the two languages has clear benefits.
On discoveries with initial undecided sets
small enough to bypass sampling entirely, the total cost of
computing the children cache and the subsequent iteration
becomes better than the Python + C counterpart, which relies on
reachableroots2.
For example, on a repo with more than one million revisions with
an initial undecided set of 11 elements, we get these figures:
Rust version with simple iteration
addcommons: 57.287us
first undecided computation: 184.278334ms
first children cache computation: 131.056us
addmissings iteration: 42.766us
first addinfo total: 185.24 ms
Python + C version
first addcommons: 0.29 ms
addcommons 0.21 ms
first undecided computation 191.35 ms
addmissings 45.75 ms
first addinfo total: 237.77 ms
On discoveries with large undecided sets, the initial price paid
makes the first addinfo slower than the Python + C version,
but that's more than compensated by the gain in sampling and
subsequent iterations.
Here's an extreme example with an undecided set of a million revisions:
Rust version:
first undecided computation: 293.842629ms
first children cache computation: 407.911297ms
addmissings iteration: 34.312869ms
first addinfo total: 776.02 ms
taking initial sample
query 2: sampling time: 1318.38 ms
query 2; still undecided: 1005013, sample size is: 200
addmissings: 143.062us
Python + C version:
first undecided computation 298.13 ms
addmissings 80.13 ms
first addinfo total: 399.62 ms
taking initial sample
query 2: sampling time: 3957.23 ms
query 2; still undecided: 1005013, sample size is: 200
addmissings 52.88 ms
Differential Revision: https://phab.mercurial-scm.org/D6428
author | Georges Racinet <georges.racinet@octobus.net> |
---|---|
date | Tue, 16 Apr 2019 01:16:39 +0200 |
parents | 3e3acf5d6a07 |
children | 7e5be4a7cda7 |
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#require serve $ cat > web.conf << EOF > [paths] > / = $TESTTMP/* > EOF $ hg init repo1 $ cd repo1 $ touch foo $ hg -q commit -A -m initial $ cd .. $ hg serve -p $HGPORT -d --pid-file=hg.pid --web-conf web.conf $ cat hg.pid >> $DAEMON_PIDS repo index should not send Content-Security-Policy header by default $ get-with-headers.py --headeronly localhost:$HGPORT '' content-security-policy etag 200 Script output follows static page should not send CSP by default $ get-with-headers.py --headeronly localhost:$HGPORT static/mercurial.js content-security-policy etag 200 Script output follows repo page should not send CSP by default, should send ETag $ get-with-headers.py --headeronly localhost:$HGPORT repo1 content-security-policy etag 200 Script output follows etag: W/"*" (glob) $ killdaemons.py Configure CSP without nonce $ cat >> web.conf << EOF > [web] > csp = script-src https://example.com/ 'unsafe-inline' > EOF $ hg serve -p $HGPORT -d --pid-file=hg.pid --web-conf web.conf $ cat hg.pid > $DAEMON_PIDS repo index should send Content-Security-Policy header when enabled $ get-with-headers.py --headeronly localhost:$HGPORT '' content-security-policy etag 200 Script output follows content-security-policy: script-src https://example.com/ 'unsafe-inline' static page should send CSP when enabled $ get-with-headers.py --headeronly localhost:$HGPORT static/mercurial.js content-security-policy etag 200 Script output follows content-security-policy: script-src https://example.com/ 'unsafe-inline' $ get-with-headers.py --twice --headeronly localhost:$HGPORT repo1/static/style.css content-security-policy 200 Script output follows content-security-policy: script-src https://example.com/ 'unsafe-inline' 304 Not Modified content-security-policy: script-src https://example.com/ 'unsafe-inline' repo page should send CSP by default, include etag w/o nonce $ get-with-headers.py --headeronly localhost:$HGPORT repo1 content-security-policy etag 200 Script output follows content-security-policy: script-src https://example.com/ 'unsafe-inline' etag: W/"*" (glob) nonce should not be added to html if CSP doesn't use it $ get-with-headers.py localhost:$HGPORT repo1/graph/tip | egrep 'content-security-policy|<script' <script type="text/javascript" src="/repo1/static/mercurial.js"></script> <script type="text/javascript"> <script type="text/javascript"> Configure CSP with nonce $ killdaemons.py $ cat >> web.conf << EOF > csp = image-src 'self'; script-src https://example.com/ 'nonce-%nonce%' > EOF $ hg serve -p $HGPORT -d --pid-file=hg.pid --web-conf web.conf $ cat hg.pid > $DAEMON_PIDS nonce should be substituted in CSP header $ get-with-headers.py --headeronly localhost:$HGPORT '' content-security-policy etag 200 Script output follows content-security-policy: image-src 'self'; script-src https://example.com/ 'nonce-*' (glob) nonce should be included in CSP for static pages $ get-with-headers.py --headeronly localhost:$HGPORT static/mercurial.js content-security-policy etag 200 Script output follows content-security-policy: image-src 'self'; script-src https://example.com/ 'nonce-*' (glob) repo page should have nonce, no ETag $ get-with-headers.py --headeronly localhost:$HGPORT repo1 content-security-policy etag 200 Script output follows content-security-policy: image-src 'self'; script-src https://example.com/ 'nonce-*' (glob) nonce should be added to html when used $ get-with-headers.py localhost:$HGPORT repo1/graph/tip content-security-policy | egrep 'content-security-policy|<script' content-security-policy: image-src 'self'; script-src https://example.com/ 'nonce-*' (glob) <script type="text/javascript" src="/repo1/static/mercurial.js"></script> <script type="text/javascript" nonce="*"> (glob) <script type="text/javascript" nonce="*"> (glob) hgweb_mod w/o hgwebdir works as expected $ killdaemons.py $ hg serve -R repo1 -p $HGPORT -d --pid-file=hg.pid --config "web.csp=image-src 'self'; script-src https://example.com/ 'nonce-%nonce%'" $ cat hg.pid > $DAEMON_PIDS static page sends CSP $ get-with-headers.py --headeronly localhost:$HGPORT static/mercurial.js content-security-policy etag 200 Script output follows content-security-policy: image-src 'self'; script-src https://example.com/ 'nonce-*' (glob) nonce included in <script> and headers $ get-with-headers.py localhost:$HGPORT graph/tip content-security-policy | egrep 'content-security-policy|<script' content-security-policy: image-src 'self'; script-src https://example.com/ 'nonce-*' (glob) <script type="text/javascript" src="/static/mercurial.js"></script> <script type="text/javascript" nonce="*"> (glob) <script type="text/javascript" nonce="*"> (glob)