jdk8 build times

[Pete Brunet]

Besides removing Norton 360 I defragged my disk with Auslogics Disk
Defrag.  The disk was quite fragmented prior to running the defragger
but neither of those helped much.  Current situation:

WinSat disk:

Average Read Time with Sequential Writes     23.026 ms
Latency: 95th Percentile                     121.140 ms
Average Read Time with Random Writes         29.098 ms

build all, release:

00:01:57 corba
00:04:00 demos
00:09:53 docs
00:08:20 hotspot
00:07:16 images
00:02:50 jaxp
00:05:04 jaxws
00:39:19 jdk
00:02:09 langtools
00:03:36 nashorn
01:24:36 TOTAL

The disk is 500 mb and about half full.
http://www.hgst.com/hard-drives/mobile-drives/9.5mm-mobile-hard-drives/travelstar-7k750

Someone with a very similar laptop, T430 vs my T500, and a similar disk
does much better, by an hour.  That disk has a 32 MB cache; mine has a
16 MB cache.
http://www.hgst.com/hard-drives/mobile-drives/7mm-thin-and-light-drives/travelstar-z7k500

Maybe the disk has some sort of failure impacting performance (or the 16
MB cache makes a difference), though it does pass the PCDoctor/Lenovo
diagnostics.  Also it is running in AHCI mode which apparently is
supposed to be better than using Compatibility mode

Pete

On 8/29/13 12:36 AM, Weijun Wang wrote:
> I have watched this thread for some time. Yes, SSD should be faster
> but Pete's build times are just incredibly slow and there must be some
> other reason.
>
> I just open my Lenovo t410 (i5 2.6GHz, 8GB RAM, HDD) that has been
> asleep for the last two days, mkdir a new directory, run configure and
> "make langtools". The time spent is 00:01:05. Even in a VirtualBox
> guest inside my Mac Mini (HDD) with source and boot JDK all on the
> host, "make langtools" costs me 00:01:29.
>
> And Pete's number (after disable Norton 360) is
>
>     00:04:17 langtools
>
> How can this ever happen?
>
> --Max
>
> On 8/29/13 12:05 PM, Ioi Lam wrote:
>> Dell laptop (Win7, i5-2520M 2.5Ghz, 8GB RAM) +  Samsung 840 PRO SSD
>> 256GB.
>>
>> The JDK source tree is excluded from virus scan.
>>
>> The source has all the open and closed parts. I ran configure and "make
>> all" with all default parameters.
>>
>> ----- Build times -------
>> Start 2013-08-28 20:33:57
>> End   2013-08-28 20:57:01
>> 00:00:37 corba
>> 00:01:21 demos
>> 00:02:42 docs
>> 00:04:07 hotspot
>> 00:02:18 images
>> 00:00:30 jaxp
>> 00:01:14 jaxws
>> 00:09:03 jdk
>> 00:00:45 langtools
>> 00:00:19 nashorn
>> 00:23:05 TOTAL
>> -------------------------
>>
>> - Ioi
>>
>>
>> On 08/28/2013 04:21 AM, Erik Joelsson wrote:
>>> Nice to see improvement, but it's still far from where it should be.
>>> For comparison, here are my build times on a similar, but probably
>>> slower, laptop. Lenovo T410, i5 M 520 2.40GHz and 4GB ram, no ssd.
>>> This laptop has no anti virus scanning installed.
>>>
>>> ----- Build times -------
>>> Start 2013-08-28 12:25:00
>>> End   2013-08-28 12:54:56
>>> 00:00:47 corba
>>> 00:01:40 demos
>>> 00:05:43 hotspot
>>> 00:03:29 images
>>> 00:00:48 jaxp
>>> 00:01:38 jaxws
>>> 00:14:07 jdk
>>> 00:01:10 langtools
>>> 00:00:25 nashorn
>>> 00:29:56 TOTAL
>>> -------------------------
>>>
>>> /Erik
>>>
>>> On 2013-08-27 23:14, Pete Brunet wrote:
>>>> Here are my release build times with my repo tree in the Norton 360
>>>> real
>>>> time virus checking ignore list:
>>>>
>>>> 00:03:34 corba
>>>> 00:12:51 demos
>>>> 00:15:10 docs
>>>> 00:18:42 hotspot
>>>> 00:15:55 images
>>>> 00:01:42 jaxp
>>>> 00:07:32 jaxws
>>>> 00:43:04 jdk
>>>> 00:04:17 langtools
>>>> 00:02:31 nashorn
>>>> 02:05:18 TOTAL
>>>>
>>>> Here are the prior times:
>>>>
>>>> 00:05:55 corba
>>>> 00:09:46 demos
>>>> 00:15:00 docs
>>>> 00:18:37 hotspot
>>>> 00:17:13 images
>>>> 00:03:32 jaxp
>>>> 00:11:41 jaxws
>>>> 01:05:35 jdk
>>>> 00:06:47 langtools
>>>> 00:02:26 nashorn
>>>> 02:37:45 TOTAL
>>>>
>>>> A half hour improvement is nice, but looks like I need to switch to
>>>> an SSD.
>>>>
>>>> Pete
>>>>
>>>> On 8/9/13 11:25 AM, Pete Brunet wrote:
>>>>> Any suggestions for SSDs?  My T500 takes 2.5" SATA II.
>>>>>
>>>>> On 8/9/13 10:44 AM, Andreas Rieber wrote:
>>>>>> Hi Peter,
>>>>>>
>>>>>> try perfmon.exe to see where the bottleneck is. Most likely it is
>>>>>> memory or io. If you have the option, go for a SSD drive (you
>>>>>> will get
>>>>>> build times ~10 minutes).
>>>>>>
>>>>>> Andreas
>>>>>>
>>>>>>
>>>>>> On 09.08.13 16:44, Pete Brunet wrote:
>>>>>>> My product is Norton 360.  To turn it off I right click on the
>>>>>>> Norton
>>>>>>> 360 icon in the system tray and choose Disable Antivirus
>>>>>>> Auto-Protect.
>>>>>>> If anyone knows if this is not sufficient and what else needs to
>>>>>>> be done
>>>>>>> please let me know.
>>>>>>>
>>>>>>> Pete
>>>>>>>
>>>>>>> On 8/9/13 1:58 AM, Erik Joelsson wrote:
>>>>>>>> I wonder if anti virus is really turned off here. In my
>>>>>>>> experience,
>>>>>>>> it's hard to make it stop completely. I have a slightly older
>>>>>>>> laptop,
>>>>>>>> same brand, that builds this in around 40-45 minutes.
>>>>>>>>
>>>>>>>> /Erik
>>>>>>>>
>>>>>>>> On 2013-08-09 03:32, Pete Brunet wrote:
>>>>>>>>> Haven't rebuilt a release version yet for a true comparison but
>>>>>>>>> here are
>>>>>>>>> my fastdebug times with anti-virus turned off; about the same as
>>>>>>>>> release
>>>>>>>>> with anti-virus on.
>>>>>>>>>
>>>>>>>>> 00:04:30 corba
>>>>>>>>> 00:07:25 demos
>>>>>>>>> 00:16:28 docs
>>>>>>>>> 00:16:15 hotspot
>>>>>>>>> 00:23:13 images
>>>>>>>>> 00:04:18 jaxp
>>>>>>>>> 00:07:29 jaxws
>>>>>>>>> 00:59:41 jdk
>>>>>>>>> 00:05:11 langtools
>>>>>>>>> 00:01:42 nashorn
>>>>>>>>> 02:26:32 TOTAL
>>>>>>>>>
>>>>>>>>> Pete
>>>>>>>>>
>>>>>>>>> On 8/6/13 12:55 PM, Kelly O'Hair wrote:
>>>>>>>>>> 4. Using a debug jdk as your boot jdk
>>>>>>>>>>
>>>>>>>>>> :)
>>>>>>>>>>
>>>>>>>>>> Langtools taking 6 minutes is crazy long. Since there is no
>>>>>>>>>> native
>>>>>>>>>> code there, #1 would be my first guess.
>>>>>>>>>>
>>>>>>>>>> -kto
>>>>>>>>>>
>>>>>>>>>> On Aug 5, 2013, at 5:54 PM, Weijun Wang wrote:
>>>>>>>>>>
>>>>>>>>>>>    From my experiences there are 3 reasons a compile could be
>>>>>>>>>>> slow:
>>>>>>>>>>>
>>>>>>>>>>> 1. Anti-Virus programs
>>>>>>>>>>> 2. Virtual Machines
>>>>>>>>>>> 3. Network folders
>>>>>>>>>>>
>>>>>>>>>>> --Max
>>>>>>>>>>>
>>>>>>>>>>> On 8/6/13 12:48 AM, Pete Brunet wrote:
>>>>>>>>>>>> Hi Erik,
>>>>>>>>>>>>
>>>>>>>>>>>> 00:05:55 corba
>>>>>>>>>>>> 00:09:46 demos
>>>>>>>>>>>> 00:15:00 docs
>>>>>>>>>>>> 00:18:37 hotspot
>>>>>>>>>>>> 00:17:13 images
>>>>>>>>>>>> 00:03:32 jaxp
>>>>>>>>>>>> 00:11:41 jaxws
>>>>>>>>>>>> 01:05:35 jdk
>>>>>>>>>>>> 00:06:47 langtools
>>>>>>>>>>>> 00:02:26 nashorn
>>>>>>>>>>>> 02:37:45 TOTAL
>>>>>>>>>>>>
>>>>>>>>>>>> Pete
>>>>>>>>>>>>
>>>>>>>>>>>> On 8/5/13 6:55 AM, Erik Joelsson wrote:
>>>>>>>>>>>>> That was disappointingly slow for sure. Do you have the
>>>>>>>>>>>>> build time
>>>>>>>>>>>>> summary listing?
>>>>>>>>>>>>>
>>>>>>>>>>>>> /Erik
>>>>>>>>>>>>>
>>>>>>>>>>>>> On 2013-08-02 22:26, Pete Brunet wrote:
>>>>>>>>>>>>>> FWIW I just built 32 bit jdk8 release on 64 bit win 7 with
>>>>>>>>>>>>>> cygwin 1.7.21
>>>>>>>>>>>>>> on a dual core 8 GB 2.53 GHz Lenovo T500 and the build time
>>>>>>>>>>>>>> was
>>>>>>>>>>>>>> 2:37:45.
>>>
>>