<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>75958</bug_id>
          
          <creation_ts>2012-01-10 06:40:24 -0800</creation_ts>
          <short_desc>nrwt should use multiple http shards</short_desc>
          <delta_ts>2012-01-13 11:55:32 -0800</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Tools / Tests</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          <dependson>63116</dependson>
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Kristóf Kosztyó">kkristof</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>abarth</cc>
    
    <cc>dpranke</cc>
    
    <cc>ojan</cc>
    
    <cc>ossy</cc>
    
    <cc>webkit.review.bot</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>533021</commentid>
    <comment_count>0</comment_count>
    <who name="Kristóf Kosztyó">kkristof</who>
    <bug_when>2012-01-10 06:40:24 -0800</bug_when>
    <thetext>We ran some tests with multiple http shards on the Qt port and it seems stable, we haven&apos;t met any flaky http test. Maybe we can allow it by default or if the other ports still have problems with it we can make an option like --max-http-shards=i and set it&apos;s default value to 1.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>533233</commentid>
    <comment_count>1</comment_count>
    <who name="Dirk Pranke">dpranke</who>
    <bug_when>2012-01-10 11:29:21 -0800</bug_when>
    <thetext>Sure, that seems fine. Feel free to add a patch, or I will get around to it sooner or later.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>533734</commentid>
    <comment_count>2</comment_count>
      <attachid>121992</attachid>
    <who name="Kristóf Kosztyó">kkristof</who>
    <bug_when>2012-01-11 01:12:50 -0800</bug_when>
    <thetext>Created attachment 121992
add --max-locked-shard option

I added the option to set it manual so now we can test it easier.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>533866</commentid>
    <comment_count>3</comment_count>
      <attachid>121992</attachid>
    <who name="Csaba Osztrogonác">ossy</who>
    <bug_when>2012-01-11 07:00:06 -0800</bug_when>
    <thetext>Comment on attachment 121992
add --max-locked-shard option

View in context: https://bugs.webkit.org/attachment.cgi?id=121992&amp;action=review

LGTM. Any objection?

&gt; Tools/Scripts/webkitpy/layout_tests/run_webkit_tests.py:383
&gt; +            help=&quot;Set the maximum of locked shards&quot;),

only a little nit: &quot;Maximum number of locked shards&quot;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>533990</commentid>
    <comment_count>4</comment_count>
      <attachid>121992</attachid>
    <who name="Ojan Vafai">ojan</who>
    <bug_when>2012-01-11 10:14:46 -0800</bug_when>
    <thetext>Comment on attachment 121992
add --max-locked-shard option

View in context: https://bugs.webkit.org/attachment.cgi?id=121992&amp;action=review

&gt; Tools/Scripts/webkitpy/layout_tests/controllers/manager.py:679
&gt; +        if self._options.max_locked_shards:
&gt; +            num_of_locked_shards = self._options.max_locked_shards
&gt; +        else:
&gt; +            num_of_locked_shards = 1

How about adding a boolean option instead (e.g. --shard-http-tests)? Then we can return &quot;max(math.ceil(num_workers / 4.0), 1)&quot; and tweak that math until we get reasonable stability.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>534758</commentid>
    <comment_count>5</comment_count>
    <who name="Csaba Osztrogonác">ossy</who>
    <bug_when>2012-01-12 05:21:19 -0800</bug_when>
    <thetext>(In reply to comment #4)
&gt; How about adding a boolean option instead (e.g. --shard-http-tests)? Then we can return &quot;max(math.ceil(num_workers / 4.0), 1)&quot; and tweak that math until we get reasonable stability.

I prefer the integer parameter, which let us use what we want.

max(math.ceil(num_workers / 4.0) wouldn&apos;t be good for 4 or 
8 workers, because 1 or 2 http shards isn&apos;t so useful ...

I think num_of_locked_shards should be an integer option now, 
and we can move forward to increase the default value of it.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>534770</commentid>
    <comment_count>6</comment_count>
      <attachid>122223</attachid>
    <who name="Kristóf Kosztyó">kkristof</who>
    <bug_when>2012-01-12 05:52:01 -0800</bug_when>
    <thetext>Created attachment 122223
add --max-locked-shard option

I fixed the grammar issues :)</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>534780</commentid>
    <comment_count>7</comment_count>
      <attachid>122223</attachid>
    <who name="Csaba Osztrogonác">ossy</who>
    <bug_when>2012-01-12 06:20:28 -0800</bug_when>
    <thetext>Comment on attachment 122223
add --max-locked-shard option

Let&apos;s go forward, r=me.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>534782</commentid>
    <comment_count>8</comment_count>
      <attachid>122223</attachid>
    <who name="Csaba Osztrogonác">ossy</who>
    <bug_when>2012-01-12 06:28:29 -0800</bug_when>
    <thetext>Comment on attachment 122223
add --max-locked-shard option

r-, because it broke a unittest. :-/

ERROR: test_shard_by_dir (webkitpy.layout_tests.controllers.manager_unittest.ShardingTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File &quot;/home/oszi/WebKit/Tools/Scripts/webkitpy/layout_tests/controllers/manager_unittest.py&quot;, line 82, in test_shard_by_dir
    locked, unlocked = self.get_shards(num_workers=2, fully_parallel=False)
  File &quot;/home/oszi/WebKit/Tools/Scripts/webkitpy/layout_tests/controllers/manager_unittest.py&quot;, line 79, in get_shards
    return self.manager._shard_tests(test_list, num_workers, fully_parallel)
  File &quot;/home/oszi/WebKit/Tools/Scripts/webkitpy/layout_tests/controllers/manager.py&quot;, line 593, in _shard_tests
    return self._shard_by_directory(test_files, num_workers)
  File &quot;/home/oszi/WebKit/Tools/Scripts/webkitpy/layout_tests/controllers/manager.py&quot;, line 664, in _shard_by_directory
    &apos;locked_shard&apos;),
  File &quot;/home/oszi/WebKit/Tools/Scripts/webkitpy/layout_tests/controllers/manager.py&quot;, line 706, in _resize_shards
    num_old_per_new = divide_and_round_up(len(old_shards), max_new_shards)
  File &quot;/home/oszi/WebKit/Tools/Scripts/webkitpy/layout_tests/controllers/manager.py&quot;, line 695, in divide_and_round_up
    return int(math.ceil(float(numerator) / divisor))
TypeError: unsupported operand type(s) for /: &apos;float&apos; and &apos;Mock&apos;

Could you check it and fix?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>535591</commentid>
    <comment_count>9</comment_count>
      <attachid>122412</attachid>
    <who name="Kristóf Kosztyó">kkristof</who>
    <bug_when>2012-01-13 04:56:28 -0800</bug_when>
    <thetext>Created attachment 122412
add --max-locked-shard option

I fixed the unit test sorry about that, and I also write a new unit test for test it works properly.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>535867</commentid>
    <comment_count>10</comment_count>
      <attachid>122412</attachid>
    <who name="WebKit Review Bot">webkit.review.bot</who>
    <bug_when>2012-01-13 11:55:26 -0800</bug_when>
    <thetext>Comment on attachment 122412
add --max-locked-shard option

Clearing flags on attachment: 122412

Committed r104967: &lt;http://trac.webkit.org/changeset/104967&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>535868</commentid>
    <comment_count>11</comment_count>
    <who name="WebKit Review Bot">webkit.review.bot</who>
    <bug_when>2012-01-13 11:55:32 -0800</bug_when>
    <thetext>All reviewed patches have been landed.  Closing bug.</thetext>
  </long_desc>
      
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            <date>2012-01-11 01:12:50 -0800</date>
            <delta_ts>2012-01-12 05:52:01 -0800</delta_ts>
            <desc>add --max-locked-shard option</desc>
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            <desc>add --max-locked-shard option</desc>
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<flag name="review"
          id="122964"
          type_id="1"
          status="-"
          setter="ossy"
    />
    <flag name="commit-queue"
          id="122965"
          type_id="3"
          status="-"
          setter="ossy"
    />
          </attachment>
          <attachment
              isobsolete="0"
              ispatch="1"
              isprivate="0"
          >
            <attachid>122412</attachid>
            <date>2012-01-13 04:56:28 -0800</date>
            <delta_ts>2012-01-13 11:55:26 -0800</delta_ts>
            <desc>add --max-locked-shard option</desc>
            <filename>0113.patch</filename>
            <type>text/plain</type>
            <size>5354</size>
            <attacher name="Kristóf Kosztyó">kkristof</attacher>
            
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          </attachment>
      

    </bug>

</bugzilla>