8072909: TimSort fails with ArrayIndexOutOfBoundsException on arrays longer than 1073741824
Lev Priima
lev.priima at oracle.com
Thu Feb 12 18:26:32 UTC 2015
Thanks!
Lev
On 02/12/2015 02:53 PM, Roger Riggs wrote:
> Hi Lev,
>
> ok, looks fine,
>
> I'll sponsor it and push it.
>
> Roger
>
> On 2/12/2015 11:56 AM, Lev Priima wrote:
>> Christos,
>>
>> Test may fail on shorter arrays(page 8 of paper). For instance, on
>> worst case, generated by test, it starts to fail on length 67108864.
>> After increasing stack size of runs to merge, Arrays.sort(T[]) works
>> also on maximum possible array for HotSpot JVM.
>>
>>
>> Roger, David,
>> I've updated the test (
>> http://cr.openjdk.java.net/~lpriima/8072909/webrev.01/test/java/util/Arrays/TimSortStackSize2.java.html
>> ) to make it more suitable for regular execution:
>> 27 * @run main/othervm TimSortStackSize2 67108864
>> 28 * not for regular execution on all platforms:
>> 29 * run main/othervm -Xmx8g TimSortStackSize2 1073741824
>> 30 * run main/othervm -Xmx32g TimSortStackSize2 2147483644
>> Could you please push this:
>> http://cr.openjdk.java.net/~lpriima/8072909/webrev.01/
>> ?
>> Lev
>> On 02/12/2015 12:54 PM, christos at zoulas.com wrote:
>>> On Feb 12, 9:57pm,david.holmes at oracle.com (David Holmes) wrote:
>>> -- Subject: Re: 8072909: TimSort fails with ArrayIndexOutOfBoundsException on
>>>
>>> | Ok - thanks Lev!
>>> |
>>> | David
>>>
>>> For posterity can someone document this, and also the value for which
>>> Integer.MAX_VALUE-4 fails?
>>>
>>> christos
>>
>
More information about the core-libs-dev
mailing list