##// END OF EJS Templates
bdiff: don't check border condition in loop...
bdiff: don't check border condition in loop `plast = a + len - 1`. So, this "for" loop iterates from "a" to "plast", inclusive. So, `p == plast` can only be true on the final iteration of the loop. So checking for it on every loop iteration is wasteful. This patch simply decreases the upper bound of the loop by 1 and adds an explicit check after iteration for the `p == plast` case. We can't simply add 1 to the initial value for "i" because that doesn't do the correct thing on empty input strings. `perfbdiff -m 3041e4d59df2` on the Firefox repo becomes significantly faster: ! wall 0.072763 comb 0.070000 user 0.070000 sys 0.000000 (best of 100) ! wall 0.053221 comb 0.060000 user 0.060000 sys 0.000000 (best of 100) For the curious, this code has its origins in 8b067bde6679, which is the changeset that introduced bdiff.c in 2005. Also, GNU diffutils is able to perform a similar line-based diff in under 20ms. So there's likely more perf wins to be found in this code. One of them is the hashing algorithm. But it looks like mpm spent some time testing hash collisions in d0c48891dd4a. I'd like to do the same before switching away from lyhash, just to be on the safe side.

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r30074:8f34e217 default
r30308:d500ddae default
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style-paper.css
431 lines | 7.1 KiB | text/css | CssLexer
body {
margin: 0;
padding: 0;
background: white;
color: black;
font-family: sans-serif;
}
.container {
padding-left: 115px;
}
.main {
position: relative;
background: white;
padding: 2em 2em 2em 0;
}
#.main {
width: 98%;
}
.overflow {
width: 100%;
overflow: auto;
}
.menu {
width: 90px;
margin: 0;
font-size: 80%;
text-align: left;
position: absolute;
top: 20px;
left: 20px;
right: auto;
}
.menu ul {
list-style: none;
padding: 0;
margin: 10px 0 0 0;
border-left: 2px solid #999;
}
.menu li {
margin-bottom: 3px;
padding: 2px 4px;
background: white;
color: black;
font-weight: normal;
}
.menu li.active {
font-weight: bold;
}
.menu img {
width: 75px;
height: 90px;
border: 0;
}
div.atom-logo {
margin-top: 10px;
}
.atom-logo img{
width: 14px;
height: 14px;
border: 0;
}
.menu a { color: black; display: block; }
.search {
position: absolute;
top: .7em;
right: 2em;
}
form.search div#hint {
display: none;
position: absolute;
top: 40px;
right: 0px;
width: 190px;
padding: 5px;
background: #ffc;
font-size: 70%;
border: 1px solid yellow;
border-radius: 5px;
}
form.search:hover div#hint { display: block; }
a { text-decoration:none; }
.age { white-space:nowrap; }
.date { white-space:nowrap; }
.indexlinks { white-space:nowrap; }
.parity0,
.stripes4 > :nth-child(4n+1),
.stripes2 > :nth-child(2n+1) { background-color: #f0f0f0; }
.parity1,
.stripes4 > :nth-child(4n+3),
.stripes2 > :nth-child(2n+2) { background-color: white; }
.plusline { color: green; }
.minusline { color: #dc143c; } /* crimson */
.atline { color: purple; }
.diffstat-table {
margin-top: 1em;
}
.diffstat-file {
white-space: nowrap;
font-size: 90%;
}
.diffstat-total {
white-space: nowrap;
font-size: 90%;
}
.diffstat-graph {
width: 100%;
}
.diffstat-add {
background-color: green;
float: left;
}
.diffstat-remove {
background-color: red;
float: left;
}
.navigate {
text-align: right;
font-size: 60%;
margin: 1em 0;
}
.tag {
color: #999;
font-size: 70%;
font-weight: normal;
margin-left: .5em;
vertical-align: baseline;
}
.branchhead {
color: #000;
font-size: 80%;
font-weight: normal;
margin-left: .5em;
vertical-align: baseline;
}
ul#graphnodes .branchhead {
font-size: 75%;
}
.branchname {
color: #000;
font-size: 60%;
font-weight: normal;
margin-left: .5em;
vertical-align: baseline;
}
h3 .branchname {
font-size: 80%;
}
/* Common */
pre { margin: 0; }
h2 { font-size: 120%; border-bottom: 1px solid #999; }
h2 a { color: #000; }
h3 {
margin-top: +.7em;
font-size: 100%;
}
/* log and tags tables */
.bigtable {
border-bottom: 1px solid #999;
border-collapse: collapse;
font-size: 90%;
width: 100%;
font-weight: normal;
text-align: left;
}
.bigtable td {
vertical-align: top;
}
.bigtable th {
padding: 1px 4px;
border-bottom: 1px solid #999;
}
.bigtable tr { border: none; }
.bigtable .age { width: 7em; }
.bigtable .author { width: 15em; }
.bigtable .description { }
.bigtable .description .base { font-size: 70%; float: right; line-height: 1.66; }
.bigtable .node { width: 5em; font-family: monospace;}
.bigtable .permissions { width: 8em; text-align: left;}
.bigtable .size { width: 5em; text-align: right; }
.bigtable .annotate { text-align: right; }
.bigtable td.annotate { font-size: smaller; }
.bigtable td.source { font-size: inherit; }
tr.thisrev a { color:#999999; text-decoration: none; }
tr.thisrev td.source { color:#009900; }
td.annotate {
white-space: nowrap;
}
div.annotate-info {
display: none;
position: absolute;
background-color: #FFFFFF;
border: 1px solid #999;
text-align: left;
color: #000000;
padding: 5px;
}
div.annotate-info a { color: #0000FF; }
td.annotate:hover div.annotate-info { display: inline; }
.source, .sourcefirst {
font-family: monospace;
white-space: pre;
padding: 1px 4px;
font-size: 90%;
}
.sourcefirst { border-bottom: 1px solid #999; font-weight: bold; }
.source a { color: #999; font-size: smaller; font-family: monospace;}
.bottomline { border-bottom: 1px solid #999; }
.sourcelines {
font-size: 90%;
position: relative;
counter-reset: lineno;
}
.wrap > span {
white-space: pre-wrap;
}
.linewraptoggle {
float: right;
}
.diffblocks { counter-reset: lineno; }
.diffblocks > div { counter-increment: lineno; }
.sourcelines > span {
display: inline-block;
box-sizing: border-box;
width: 100%;
padding: 1px 0px 1px 5em;
counter-increment: lineno;
}
.sourcelines > span:before {
-moz-user-select: -moz-none;
-khtml-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
user-select: none;
display: inline-block;
margin-left: -5em;
width: 4em;
font-size: smaller;
color: #999;
text-align: right;
content: counters(lineno, ".");
float: left;
}
.sourcelines > span:target, tr:target td {
background-color: #bfdfff;
}
.sourcelines > a {
display: inline-block;
position: absolute;
left: 0px;
width: 4em;
height: 1em;
}
.fileline { font-family: monospace; }
.fileline img { border: 0; }
.tagEntry .closed { color: #99f; }
/* Changeset entry */
#changesetEntry {
border-collapse: collapse;
font-size: 90%;
width: 100%;
margin-bottom: 1em;
}
#changesetEntry th {
padding: 1px 4px;
width: 4em;
text-align: right;
font-weight: normal;
color: #999;
margin-right: .5em;
vertical-align: top;
}
div.description {
border-left: 2px solid #999;
margin: 1em 0 1em 0;
padding: .3em;
white-space: pre;
font-family: monospace;
}
/* Graph */
div#wrapper {
position: relative;
border-top: 1px solid black;
border-bottom: 1px solid black;
margin: 0;
padding: 0;
}
canvas {
position: absolute;
z-index: 5;
top: -0.7em;
margin: 0;
}
ul#graphnodes {
position: absolute;
z-index: 10;
top: -1.0em;
list-style: none inside none;
padding: 0;
}
ul#nodebgs {
list-style: none inside none;
padding: 0;
margin: 0;
top: -0.7em;
}
ul#graphnodes li, ul#nodebgs li {
height: 39px;
}
ul#graphnodes li .info {
display: block;
font-size: 70%;
position: relative;
top: -3px;
}
/* Comparison */
.legend {
padding: 1.5% 0 1.5% 0;
}
.legendinfo {
border: 1px solid #999;
font-size: 80%;
text-align: center;
padding: 0.5%;
}
.equal {
background-color: #ffffff;
}
.delete {
background-color: #faa;
color: #333;
}
.insert {
background-color: #ffa;
}
.replace {
background-color: #e8e8e8;
}
.header {
text-align: center;
}
.block {
border-top: 1px solid #999;
}
.breadcrumb {
color: gray;
}
.breadcrumb a {
color: blue;
}
.scroll-loading {
-webkit-animation: change_color 1s linear 0s infinite alternate;
-moz-animation: change_color 1s linear 0s infinite alternate;
-o-animation: change_color 1s linear 0s infinite alternate;
animation: change_color 1s linear 0s infinite alternate;
}
@-webkit-keyframes change_color {
from { background-color: #A0CEFF; } to { }
}
@-moz-keyframes change_color {
from { background-color: #A0CEFF; } to { }
}
@-o-keyframes change_color {
from { background-color: #A0CEFF; } to { }
}
@keyframes change_color {
from { background-color: #A0CEFF; } to { }
}
.scroll-loading-error {
background-color: #FFCCCC !important;
}