RFR(L) 8153224 Monitor deflation prolong safepoints
Daniel D. Daugherty
daniel.daugherty at oracle.com
Mon Apr 8 16:55:01 UTC 2019
Greetings,
I took the last repo that I ran through Mach5 tier[1-8] testing and did
10 SPECjbb2015 runs on the 'release' version of those bits. I also did
10 SPECjbb2015 runs on the 'release' version of the baseline bits.
Baseline: jdk-13+13
Exp: v2.00 (8153224-webrev/3-for-jdk13) plus
special-cleanup-for-global-in-use-list
Linux-X64 Machine:
- Ubuntu 16.04, Dell T7600, 64GB RAM
- Intel(R) Xeon(R) CPU E5-2665 0 @ 2.40GHz, 2 CPUs x 8 cores x 2 threads
MacOSX Machine:
- MacOS 10.13.6, Mac Mini, mid 2011, 16GB RAM
- 2 GHz Intel Core i7 (I7-2635QM), 1 CPU x 4 cores x 2 threads
Solaris-X64 Machine:
- Solaris 11.2 SRU5.5, Dell T7600, 64GB RAM
- Intel(R) Xeon(R) CPU E5-2665 0 @ 2.40GHz, 2 CPUs x 8 cores x 2 threads
Average Results for Each OS
hbIR hbIR
(max attempted) (settled) max-jOPS critical-jOPS run_name
--------------- --------- -------- ------------- --------
23838.00 22446.90 20738.80 6166.70 Linux-X64 base
23838.00 22279.40 20262.00 5891.50 Linux-X64 exp
5841.80 4885.00 4764.00 1495.10 MacOSX base
5621.00 4701.00 4778.00 1492.10 MacOSX exp
16125.20 13852.30 12780.50 2791.90 Solaris-X64 base
15788.70 13861.40 12551.40 2665.90 Solaris-X64 exp
I'm new to SPECjbb2015 so I don't what "hbIR" and "jOPS" are yet.
Based a bit of googling so far, it appears that for critical-jOPS,
higher is better:
- Linux-X64 exp critical-jOPS is ~4.5% lower than Linux-X64 base
- MacOSX base and MacOSX exp critical-jOPS are almost identical
- Solaris-X64 exp critical-jOPS is ~4.5% lower than Linux-X64 base
I have not tried to research or analyze the other columns yet.
The results for each of the 10 runs are shown below.
Dan
Linux-X64 Runs
hbIR hbIR
(max attempted) (settled) max-jOPS critical-jOPS run_name
--------------- --------- -------- ------------- --------
23838 22719 19070 6515
SPECjbb2015.Lin-X64.base.01
23838 21642 20262 5591
SPECjbb2015.Lin-X64.base.02
23838 23108 20262 6508
SPECjbb2015.Lin-X64.base.03
23838 21730 21454 6235
SPECjbb2015.Lin-X64.base.04
23838 22220 21454 6028
SPECjbb2015.Lin-X64.base.05
23838 22543 20262 5996
SPECjbb2015.Lin-X64.base.06
23838 23014 21454 6192
SPECjbb2015.Lin-X64.base.07
23838 22543 21454 5889
SPECjbb2015.Lin-X64.base.08
23838 22750 20262 6038
SPECjbb2015.Lin-X64.base.09
23838 22200 21454 6675
SPECjbb2015.Lin-X64.base.10
--------------- --------- -------- ------------- --------
23838.00 22446.90 20738.80 6166.70 average of values
hbIR hbIR
(max attempted) (settled) max-jOPS critical-jOPS run_name
--------------- --------- -------- ------------- --------
23838 21422 20262 6329
SPECjbb2015.Lin-X64.exp.01
23838 22543 19070 6351
SPECjbb2015.Lin-X64.exp.02
23838 22100 20262 5005
SPECjbb2015.Lin-X64.exp.03
23838 22543 20262 5881
SPECjbb2015.Lin-X64.exp.04
23838 23170 20262 5938
SPECjbb2015.Lin-X64.exp.05
23838 22543 20262 5744
SPECjbb2015.Lin-X64.exp.06
23838 22100 20262 5482
SPECjbb2015.Lin-X64.exp.07
23838 22543 20262 6213
SPECjbb2015.Lin-X64.exp.08
23838 22100 21454 5637
SPECjbb2015.Lin-X64.exp.09
23838 21730 20262 6335
SPECjbb2015.Lin-X64.exp.10
--------------- --------- -------- ------------- --------
23838.00 22279.40 20262.00 5891.50 average of values
MacOSX Runs
hbIR hbIR
(max attempted) (settled) max-jOPS critical-jOPS run_name
--------------- --------- -------- ------------- --------
6725 5621 4708 1543
SPECjbb2015.MacOSX.base.01
5621 4701 4778 1326
SPECjbb2015.MacOSX.base.02
6725 5621 4708 1475
SPECjbb2015.MacOSX.base.03
5621 4701 4778 1372
SPECjbb2015.MacOSX.base.04
5621 4701 4778 1560
SPECjbb2015.MacOSX.base.05
5621 4701 4778 1471
SPECjbb2015.MacOSX.base.06
5621 4701 4778 1430
SPECjbb2015.MacOSX.base.07
5621 4701 4778 1560
SPECjbb2015.MacOSX.base.08
5621 4701 4778 1581
SPECjbb2015.MacOSX.base.09
5621 4701 4778 1633
SPECjbb2015.MacOSX.base.10
--------------- --------- -------- ------------- --------
5841.80 4885.00 4764.00 1495.10 average of values
hbIR hbIR
(max attempted) (settled) max-jOPS critical-jOPS run_name
--------------- --------- -------- ------------- --------
5621 4701 4778 1566
SPECjbb2015.MacOSX.exp.01
5621 4701 4778 1430
SPECjbb2015.MacOSX.exp.02
5621 4701 4778 1530
SPECjbb2015.MacOSX.exp.03
5621 4701 4778 1304
SPECjbb2015.MacOSX.exp.04
5621 4701 4778 1560
SPECjbb2015.MacOSX.exp.05
5621 4701 4778 1460
SPECjbb2015.MacOSX.exp.06
5621 4701 4778 1638
SPECjbb2015.MacOSX.exp.07
5621 4701 4778 1471
SPECjbb2015.MacOSX.exp.08
5621 4701 4778 1402
SPECjbb2015.MacOSX.exp.09
5621 4701 4778 1560
SPECjbb2015.MacOSX.exp.10
--------------- --------- -------- ------------- --------
5621.00 4701.00 4778.00 1492.10 average of values
Solaris-X64 Runs
hbIR hbIR
(max attempted) (settled) max-jOPS critical-jOPS run_name
--------------- --------- -------- ------------- --------
16584 13957 13267 2332
SPECjbb2015.Sol-X64.base.01
16584 13837 13267 3123
SPECjbb2015.Sol-X64.base.02
16584 13837 13267 2853
SPECjbb2015.Sol-X64.base.03
16584 13837 12438 2667
SPECjbb2015.Sol-X64.base.04
14743 14210 12532 2920
SPECjbb2015.Sol-X64.base.05
16584 13837 12438 3534
SPECjbb2015.Sol-X64.base.06
13837 13497 12453 2226
SPECjbb2015.Sol-X64.base.07
16584 13837 12438 2265
SPECjbb2015.Sol-X64.base.08
16584 13837 13267 2853
SPECjbb2015.Sol-X64.base.09
16584 13837 12438 3146
SPECjbb2015.Sol-X64.base.10
--------------- --------- -------- ------------- --------
16125.20 13852.30 12780.50 2791.90 average of values
hbIR hbIR
(max attempted) (settled) max-jOPS critical-jOPS run_name
--------------- --------- -------- ------------- --------
16584 13837 12438 2073
SPECjbb2015.Sol-X64.exp.01
16584 14353 13267 2667
SPECjbb2015.Sol-X64.exp.02
16584 13837 12438 2349
SPECjbb2015.Sol-X64.exp.03
16584 13837 12438 2494
SPECjbb2015.Sol-X64.exp.04
13981 13832 12583 3241
SPECjbb2015.Sol-X64.exp.05
13837 13575 12453 2621
SPECjbb2015.Sol-X64.exp.06
13981 13832 12583 2768
SPECjbb2015.Sol-X64.exp.07
16584 13837 12438 3000
SPECjbb2015.Sol-X64.exp.08
16584 13837 12438 2952
SPECjbb2015.Sol-X64.exp.09
16584 13837 12438 2494
SPECjbb2015.Sol-X64.exp.10
--------------- --------- -------- ------------- --------
15788.70 13861.40 12551.40 2665.90 average of values
On 3/24/19 9:57 AM, Daniel D. Daugherty wrote:
> Greetings,
>
> Welcome to the OpenJDK review thread for my port of Carsten's work on:
>
> JDK-8153224 Monitor deflation prolong safepoints
> https://bugs.openjdk.java.net/browse/JDK-8153224
>
> Here's a link to the OpenJDK wiki that describes my port:
>
> https://wiki.openjdk.java.net/display/HotSpot/Async+Monitor+Deflation
>
> Here's the webrev URL:
>
> http://cr.openjdk.java.net/~dcubed/8153224-webrev/3-for-jdk13/
>
> Here's a link to Carsten's original webrev:
>
> http://cr.openjdk.java.net/~cvarming/monitor_deflate_conc/0/
>
> Earlier versions of this patch have been through several rounds of
> preliminary review. Many thanks to Carsten, Coleen, Robbin, and
> Roman for their preliminary code review comments. A very special
> thanks to Robbin and Roman for building and testing the patch in
> their own environments (including specJBB2015).
>
> This version of the patch has been thru Mach5 tier[1-8] testing on
> Oracle's usual set of platforms. Earlier versions have been run
> through my stress kit on my Linux-X64 and Solaris-X64 servers
> (product, fastdebug, slowdebug).Earlier versions have run Kitchensink
> for 12 hours on MacOSX, Linux-X64 and Solaris-X64 (product, fastdebug
> and slowdebug). Earlier versions have run my monitor inflation stress
> tests for 12 hours on MacOSX, Linux-X64 and Solaris-X64 (product,
> fastdebug and slowdebug).
>
> All of the testing done on earlier versions will be redone on the
> latest version of the patch.
>
> Thanks, in advance, for any questions, comments or suggestions.
>
> Dan
>
> P.S.
> One subtest in gc/g1/humongousObjects/TestHumongousClassLoader.java
> is currently failing in -Xcomp mode on Win* only. I've been trying
> to characterize/analyze this failure for more than a week now. At
> this point I'm convinced that Async Monitor Deflation is aggravating
> an existing bug. However, I plan to have a better handle on that
> failure before these bits are pushed to the jdk/jdk repo.
>
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