On 7/09/2021 2:20 pm, Igor Ignatyev wrote:
On Mon, 6 Sep 2021 13:22:03 GMT, Aleksey Shipilev <sh...@openjdk.org> wrote:

During the review of JDK-8272914 that added hotspot:tier{2,3} groups, @iignatev 
suggested to create tier4 groups that capture all tests not in tiers{1,2,3}. I 
have excluded `vmTestbase` and `hotspot:tier4,` because they take 10+ hours on 
my highly parallel machine. I have also excluded `applications` from 
`hotspot:tier4`, because they require test dependencies (e.g. jcstress).

Sample run:


==============================
Test summary
==============================
    TEST                                              TOTAL  PASS  FAIL ERROR
jtreg:test/hotspot/jtreg:tier4                      426   425     1     0 <<
jtreg:test/jdk:tier4                               2891  2885     4     2 <<
    jtreg:test/langtools:tier4                            0     0     0     0
    jtreg:test/jaxp:tier4                                 0     0     0     0
==============================

real    64m13.994s
user    1462m1.213s
sys     39m38.032s


There are interesting test failures on my machine, which I would address 
separately.

Aleksey Shipilev has updated the pull request incrementally with one additional 
commit since the last revision:

   Drop applications and fix the comment

_Mailing list message from [David Holmes](mailto:david.hol...@oracle.com) on 
[hotspot-dev](mailto:hotspot-...@mail.openjdk.java.net):_

On 7/09/2021 1:17 am, Aleksey Shipilev wrote:

@dholmes-ora: Generally speaking, all `tierX` definitions are rather arbitrary, as there 
seem to be nothing intrinsic about the tests to be in a particular tier. In other words, 
what `tierX` consists of is a matter of agreement. I'd say `hotspot:tier4` is "all 
assorted Hotspot tests that are not application-specific suites"

The difference is that your previous work just consolidated the existing
subsystem tier 1-3 definitions, but here you are choosing to define "all
the rest" as tier 4. I don't think it is actually helpful/useful to
anyone - and it bears no resemblance whatsoever to what we call "tier
4", so that will just lead to unnecessary confusion IMO.

@dholmes-ora , although I fully agree that this might lead to some misunderstanding b/w Oracle and non-Oracle folks, I don't see how it's different from the previous patch, which introduced `hotspot:tier2` and `hotspot:tier3`.

Because hotspot:tier2 and hotspot:tier3 simply grouped existing component definitions for tiers 2 and 3:

+tier2 = \
+  :hotspot_tier2_runtime \
+  :hotspot_tier2_runtime_platform_agnostic \
+  :hotspot_tier2_serviceability \
+  :tier2_gc_epsilon \
+  :tier2_gc_shenandoah
+
+tier3 = \
+  :hotspot_tier3_runtime \
+  :tier3_gc_shenandoah

but that is not the case for tier4.

even if we reduce `tierN` to just a set of tests, the test groups added by 
8272914 bear as much resemblance to the test sets used in Oracle's tier2-3 as 
the suggested `hotspot:tier4` groups in this patch to the actual `tier4` 
definition used in Oracle's internal system, e.g. `hotspot:tier2` group has 0 
tests from `test/hotspot/jtreg/compiler`, but Oracle's `tier2` does include a 
number of  `test/hotspot/jtreg/compiler` tests (which aren't part of `:tier1`). 
I believe that this patch actually moves us closer to a convergence point, as 
the union of `hotspot:tier1` -- `hotspot:tier4` test groups is very close to 
the test sets used in hotspot parts of Oracle's `tier1`  -- `tier4` definitions.

We can discuss Oracle's tier definitions privately - I don't see any connection between those and this tier4 however.

Thanks,
David
-----

Thanks,
-- Igor

-------------

PR: https://git.openjdk.java.net/jdk/pull/5357

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