contrib/logo-droplets.svg

upgrade: no longer keep all revlogs in memory at any point

Keeping all object open is unsustainable, so we will open them on demand. This
mean opening them multiple times, but this is a lesser evil.

Each revlog consume a small amount of memory (index content, associated nodemap,
etc). While there are few "big" revlog, the sheer amount of small filelog can
become a significant issue memory wise, consuming multiple GB of memory.  If you
combines this extra usage with the use of multiprocessing, this usage can
quickly get out of control. This can effectively block the upgrade of larger
repository. This changeset fixes this issue.

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- Created with Inkscape (http://www.inkscape.org/) -->
<svg id="Layer_1" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" xml:space="preserve" height="120" width="100" version="1.0" xmlns:cc="http://web.resource.org/cc/" xmlns:dc="http://purl.org/dc/elements/1.1/" viewBox="0 0 124.766 152.099"><metadata id="metadata6845"><rdf:RDF><cc:Work rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/><dc:title>Mercurial &quot;droplets&quot; logo</dc:title><dc:creator><cc:Agent><dc:title>Cali Mastny and Olivia Mackall</dc:title></cc:Agent></dc:creator><cc:license rdf:resource="http://creativecommons.org/licenses/GPL/2.0/"/><dc:date>Feb 12 2008</dc:date></cc:Work><cc:License rdf:about="http://creativecommons.org/licenses/GPL/2.0/"><cc:permits rdf:resource="http://web.resource.org/cc/Reproduction"/><cc:permits rdf:resource="http://web.resource.org/cc/Distribution"/><cc:requires rdf:resource="http://web.resource.org/cc/Notice"/><cc:permits rdf:resource="http://web.resource.org/cc/DerivativeWorks"/><cc:requires rdf:resource="http://web.resource.org/cc/ShareAlike"/><cc:requires rdf:resource="http://web.resource.org/cc/SourceCode"/></cc:License></rdf:RDF></metadata>
<rect id="rect6847" stroke-linejoin="miter" style="stroke-dasharray:none;" height="150.12" width="124.77" stroke="#000" stroke-miterlimit="4" y="0.98776" x="0.3169" stroke-width="1.9755" fill="#FFF"/><path id="text2611" style="stroke-dasharray:none;" d="M9.848,124.61c1.777-0.79,3.665-1.18,5.479-1.18,1.74,0,2.851,0.43,3.48,1.32,1.332-0.89,3.146-1.32,4.553-1.32,4.221,0,4.369,1.71,4.369,6.73v11.11c0,0.49,0.074,0.49-2.036,0.49v-11.81c0-3.63-0.074-4.74-2.48-4.74-1.073,0-2.184,0.25-3.369,1.03v15.27c-0.037,0.15-0.111,0.18-0.369,0.22-0.038,0-0.074,0.03-0.112,0.03h-1.555v-11.81c0-3.49,0-4.77-2.517-4.77-1.074,0-2.147,0.21-3.406,0.82v15.27c0,0.49,0.074,0.49-2.0361,0.49v-17.15m27.831-1.18c-3.146,0-6.626,0.89-6.626,10.4,0,7.33,2.554,8.47,6.071,8.47,2.701,0,5.034-0.89,5.034-1.32,0-0.53-0.074-1.35-0.259-1.82-1.148,0.79-2.777,1.21-4.59,1.21-2.48,0-4.146-0.71-4.184-6.22,1.629,0,5.776-0.04,8.848-0.65,0.259-1.17,0.37-2.88,0.37-4.37,0-3.56-1.444-5.7-4.664-5.7m-0.185,1.78c2.221,0,2.813,1.46,2.85,4.31,0,0.75-0.037,1.64-0.148,2.49-2.073,0.5-5.591,0.5-7.072,0.5,0.261-6.48,2.481-7.3,4.37-7.3m8.07-0.21c1.739-1.14,3.332-1.57,4.961-1.57,1.814,0,2.666,0.5,2.666,1.11,0,0.35-0.112,0.96-0.297,1.31-0.519-0.28-1.11-0.53-2.074-0.53-1.184,0-2.295,0.32-3.183,1.1v14.85c0,0.49,0.037,0.49-2.073,0.49v-16.76m18.69-0.39c0-0.47-1.554-1.18-3.11-1.18-2.999,0-6.664,1.03-6.664,9.83,0,8.33,2.222,9.07,6.109,9.07,1.924,0,3.665-1.03,3.665-1.6,0-0.32-0.074-0.82-0.26-1.24-0.778,0.56-1.962,1.1-3.22,1.1-2.665,0-4.22-0.75-4.22-7.23,0-7.15,2.554-8.15,4.775-8.15,1.258,0,1.962,0.36,2.665,0.82,0.186-0.43,0.26-1.03,0.26-1.42m14.181,16.55c-1.63,0.82-3.776,1.14-5.627,1.14-4.739,0-5.442-1.99-5.442-6.73v-11.14c0-0.46-0.037-0.46,2.074-0.46v11.82c0,3.56,0.517,4.77,3.294,4.77,1.073,0,2.554-0.22,3.665-0.86v-15.27c0-0.46-0.074-0.46,2.036-0.46v17.19m4.221-16.16c1.739-1.14,3.332-1.57,4.96-1.57,1.814,0,2.666,0.5,2.666,1.11,0,0.35-0.111,0.96-0.296,1.31-0.519-0.28-1.111-0.53-2.074-0.53-1.184,0-2.295,0.32-3.183,1.1v14.85c0,0.49,0.037,0.49-2.073,0.49v-16.76m12.379-1.03c-1.629,0-2.11,0-2.11,0.96v16.83c2.073,0,2.11,0,2.11-0.49v-17.3m-2.184-6.27c0,1.18,0.37,1.6,1.11,1.64,0.851,0,1.259-0.61,1.259-1.67,0.037-1.11-0.26-1.61-1.111-1.61-0.814,0-1.221,0.61-1.258,1.64m5.696,7.3c0-0.39,0.074-0.61,0.222-0.71,0.704-0.39,3.41-0.86,6.48-0.86,2.33,0,3.81,1.11,3.81,4.31v2.31c0,6.34-0.18,11.07-0.18,11.07-0.85,0.47-2.45,1.18-5.04,1.18-2.66,0.03-5.329-0.22-5.329-5.48,0-5.02,2.739-5.81,5.479-5.81,1.04,0,2.26,0.11,3.07,0.43v-3.31c0-2.31-1.18-2.81-2.59-2.81-1.89,0-4.514,0.35-5.662,0.89-0.222-0.39-0.26-1-0.26-1.21m8.512,7.9c-0.7-0.25-1.7-0.35-2.4-0.35-2.11,0-4.04,0.42-4.04,4.34,0,3.66,1.59,3.7,3.48,3.7,1.19,0,2.37-0.32,2.78-0.75,0,0,0.18-4.27,0.18-6.94m7.86,8.37c0,0.49,0.04,0.49-2.04,0.49v-25.2c0-0.96,0.41-0.96,2.04-0.96v25.67" stroke-miterlimit="4" stroke-width="2.02999997" fill="#010101"/><g id="g4503" transform="matrix(0.9351326,0,0,0.9351326,150.39508,-1.251766)"><path id="path2339" fill="#1b1a1b" d="M-45.75,92.692c20.04-33.321-4.232-87.363-48.614-81.873-40.096,4.958-40.746,47.165-5.405,57.191,30.583,8.685,6.318,28.084,7.027,41,0.712,12.92,26.587,17.6,46.992-16.318z"/><circle id="circle2341" transform="matrix(1.0917947,-0.2858168,0.2858168,1.0917947,-180.30817,13.494135)" cy="85.364" cx="33.728" r="15.414" fill="#1b1a1b"/><path id="path2343" fill="#1b1a1b" d="M-140.06,48.936c-6.26,0.606-10.84,6.164-10.24,12.422,0.61,6.262,6.17,10.847,12.43,10.241,6.26-0.614,10.84-6.171,10.23-12.43-0.61-6.253-6.16-10.839-12.42-10.233z"/><path id="path2561" fill="#bfbfbf" d="M-44.993,91.34c20.041-33.321-4.231-87.363-48.613-81.873-40.104,4.9568-40.744,47.166-5.406,57.193,30.583,8.684,6.318,28.083,7.027,41,0.713,12.92,26.587,17.6,46.992-16.32z"/><path id="path2563" fill="#000" d="M-86.842,112.76c-1.215-1.97,0.642-4.16,2.551-3.99,3.039,0.26,9.655-0.04,14.876-3,13.043-7.39,33.114-42.966,23.019-65.405-4.519-10.044-6.72-12.92-11.374-17.833-0.95-1.002-0.405-0.948,0.238-0.609,2.517,1.321,6.94,6.437,11.477,14.765,7.664,14.069,7.267,30.795,4.416,41.287-1.986,7.299-8.825,23.815-18.842,30.955-10.039,7.15-21.785,11.26-26.361,3.83z"/><path id="path2565" fill="#000" d="M-95.93,66.591c-6.83-2.028-15.64-4.853-20.74-11.517-3.75-4.914-5.66-10.277-6.15-13.318-0.17-1.085-0.32-1.991-0.01-2.24,0.15-0.117,2.81,5.896,6.79,10.936,3.97,5.04,9.53,7.988,14.16,9.059,4.117,0.952,12.646,3.044,15.532,5.503,2.967,2.527,3.215,7.987,2.216,8.603-1.006,0.62-3.048-4.429-11.798-7.026z"/><path id="path2567" fill="#FFF" d="M-81.841,113.72c-0.132,1.57,1.665,1.87,4.083,1.51,3.099-0.46,5.72-0.81,9.287-2.6,4.835-2.42,9.728-5.89,13.312-10.57,10.692-13.945,14.478-30.45,13.895-32.824-0.195,1.961-2.776,12.253-8.679,21.532-7.582,11.922-13.079,18.262-25.758,21.342-3.529,0.86-5.967-0.45-6.14,1.61z"/><path id="path2569" fill="#FFF" d="M-109.96,59.479c1.44,1.225,4.4,2.857,10.223,4.767,7.031,2.305,10.455,4.304,11.888,5.262,1.52,1.018,2.483,3.288,2.578,1.272,0.099-2.019-1.145-3.755-3.921-4.675-1.878-0.624-5.038-2.109-8.067-2.707-1.946-0.384-5.111-1.146-7.831-1.978-1.48-0.457-3-1.258-4.87-1.941z"/><circle id="circle2577" transform="matrix(1.0917947,-0.2858168,0.2858168,1.0917947,-180.30817,13.494135)" cy="84.375" cx="34.681" r="15.414" fill="#bfbfbf"/><path id="path2579" fill="#000" d="M-128.68,108.38c13.53,12.54,33.894-4.69,24.93-19.897-1.01-1.708-2.32-3.009-1.89-1.7,2.87,8.747,0.22,15.667-4.72,19.227-4.85,3.5-11.51,4.09-16.84,1.32-1.57-0.81-2.22,0.37-1.48,1.05z"/><path id="path2585" fill="#FFF" d="M-118.07,110.95c1.73-0.36,11.75-2.95,14.1-11.194,0.73-2.569,0.86-2.053,0.66-0.661-1.06,7.105-7.78,12.345-13.49,12.545-1.16,0.12-2.68-0.39-1.27-0.69z"/><path id="path2589" fill="#bfbfbf" d="M-139.3,47.584c-6.26,0.605-10.84,6.164-10.24,12.422,0.61,6.261,6.17,10.847,12.43,10.241,6.25-0.614,10.84-6.173,10.23-12.431-0.61-6.254-6.17-10.838-12.42-10.232z"/><path id="path2591" fill="#000" d="M-144.47,67.571c0.07,0.805,1.17,1.838,2.9,2.312,1.49,0.408,5.32,1.45,10.25-1.658,4.92-3.108,5.49-11.421,3.25-13.865-0.69-1.239-1.59-2.14-0.88-0.164,1.81,4.99-1.7,9.659-4.74,11.82-3.03,2.162-6.88,1.139-8.45,0.66s-2.4,0.064-2.33,0.895z"/><path id="path2597" fill="#FFF" d="M-138.11,68.688c0.45-0.406,2.73-0.24,4.79-1.35,2.07-1.109,4.52-3.54,4.95-6.994,0.26-2.029,0.34-1.519,0.44-0.415-0.32,5.743-5.6,8.916-8.62,9.334-0.82,0.113-2.25,0.044-1.56-0.575z"/><path id="path2561_1_" fill="#999" d="M-47.767,69.694c8.532-24.594-9.323-61.736-45.446-57.268-32.637,4.035-33.167,38.389-4.4,46.55,32.582,4.933,12.962,29.512,10.179,41.904-2.495,11.11,26.331,12.94,39.667-31.186z"/><path id="path2571" fill="#f3f3f3" d="M-70.093,88.904c-8.827-1.092-21.529,18.836-9.552,16.506,5.756-0.86,10.525-2.89,14.794-7.762,5.567-6.353,13.883-20.074,16.288-28.94,2.025-7.476,1.007-19.057-1.081-8.175-2.142,11.167-11.623,29.464-20.449,28.371z"/><path id="path2581" fill="#999" d="M-129.39,104.85c2.05,0.03,3.28,0.32,5.35,1.77,4.09,1.7,11.61,0.62,15.09-3.95,3.47-4.57,3.58-10.868,2.26-14.674-3.24-9.314-16.99-9.149-23.13-1.417-6.64,8.636-1.61,18.231,0.43,18.271z"/><path id="path2593_2_" fill="#999" d="M-147.64,61.684c0.41,1.282,1.45,3.154,3.65,3.466,2.94,0.417,3.54,1.743,7,1.055,3.47-0.688,6.09-3.528,7.14-6.67,1.21-4.347-0.59-6.591-3.31-8.595-2.71-2.003-8.67-1.788-12.23,1.458-2.53,2.305-3.24,6.163-2.25,9.286z"/><path id="path256" fill="#f3f3f3" d="M-136.11,64.558c2.66-0.697,6.18-4.325,4.44-7.096-2.16-3.413-8.17-0.491-8.37,3.309-0.21,3.802,1.11,4.526,3.93,3.787z"/><path id="path258" fill="#f3f3f3" d="M-116.12,105.51c2.28-0.6,9.24-3.43,7.93-13.547-0.66-5.126-3.46,6.361-8.63,8.077-7.85,2.61-6.97,7.48,0.7,5.47z"/></g>
</svg>