RFR: JDK-8222333: fastdebug build broken after JDK-8221393

Ao Qi aoqi at loongson.cn
Thu Apr 11 12:33:09 UTC 2019


On Thu, Apr 11, 2019 at 8:09 PM Zhengyu Gu <zgu at redhat.com> wrote:
>
>
>
> On 4/11/19 7:51 AM, Ao Qi wrote:
> > Thanks Zhengyu. Updated:
> > http://cr.openjdk.java.net/~aoqi/8222333/webrev.01/ .
> > linux-x86_64-server-release  hotspot:tier1_gc tested.
>
> Sorry if I did not explain clearly.
>
> (2) just an example. You would have to do the same for phases that start
> with following comments:
>
> /* Per-thread timer block, should have "roots" counters in consistent
> order */
>
> such as, scan_roots, update_roots, init_evac and etc.

Sorry, my mistake. Updated: http://cr.openjdk.java.net/~aoqi/8222333/webrev.02/

Is other modifications needed?

$ grep "Per-thread timer block"
src/hotspot/share/gc/shenandoah/shenandoahPhaseTimings.hpp
  /* Per-thread timer block, should have "roots" counters in
consistent order */        \
  /* Per-thread timer block, should have "roots" counters in
consistent order */        \
  /* Per-thread timer block, should have "roots" counters in
consistent order */        \
  /* Per-thread timer block, should have "roots" counters in
consistent order */        \
  /* Per-thread timer block, should have "roots" counters in
consistent order */        \
  /* Per-thread timer block, should have "roots" counters in
consistent order */        \
  /* Per-thread timer block, should have "roots" counters in
consistent order */        \
  /* Per-thread timer block, should have "roots" counters in
consistent order */        \
  /* Per-thread timer block, should have "roots" counters in
consistent order */        \

$ grep "stringtable_roots"
src/hotspot/share/gc/shenandoah/shenandoahPhaseTimings.hpp
  f(scan_stringtable_roots,                         "    S: String
Table Roots")        \
  f(update_stringtable_roots,                       "    U: String
Table Roots")        \
  f(evac_stringtable_roots,                         "    E: String
Table Roots")        \
  f(final_update_stringtable_roots,                  "    UR: String
Table Roots")      \
  f(degen_gc_update_stringtable_roots,               "    DU: String
Table Roots")      \
  f(init_traversal_gc_stringtable_roots,             "    TI: String
Table Roots")      \
  f(final_traversal_gc_stringtable_roots,            "    TF: String
Table Roots")      \
  f(final_traversal_update_stringtable_roots,           "    TU:
String Table Roots")   \
  f(full_gc_stringtable_roots,                       "    F: String
Table Roots")       \

$ grep "resolved_method_table_roots"
src/hotspot/share/gc/shenandoah/shenandoahPhaseTimings.hpp
  f(scan_resolved_method_table_roots,               "    S: Resolved
Table Roots")      \
  f(update_resolved_method_table_roots,             "    U: Resolved
Table Roots")      \
  f(evac_resolved_method_table_roots,               "    E: Resolved
Table Roots")      \
  f(final_update_resolved_method_table_roots,        "    UR: Resolved
Table Roots")    \
  f(degen_gc_update_resolved_method_table_roots,     "    DU: Resolved
Table Roots")    \
  f(init_traversal_gc_resolved_method_table_roots,   "    TI: Resolved
Table Roots")    \
  f(final_traversal_gc_resolved_method_table_roots,  "    TF: Resolved
Table Roots")    \
  f(final_traversal_update_resolved_method_table_roots, "    TU:
Resolved Table Roots") \
  f(full_gc_resolved_method_table_roots,             "    F: Resolved
Table Roots")     \



>
> Thanks,
>
> -Zhengyu
>
>
> >
> > On Thu, Apr 11, 2019 at 7:25 PM Zhengyu Gu <zgu at redhat.com> wrote:
> >>
> >> Hi Ao Qi,
> >>
> >> 1) Style does not match
> >>     f(StringTableRoots,        "StringTable Roots(ms):")          \
> >> +  f(Resolved_Method_TableRoots, "Resolved_Method_Table Roots(ms):")
> >>
> >> 'Resolved_Method_TableRoots' => ResolvedMethodTableRoots
> >>
> >>
> >> 2) This is a sub-phase, you also need corresponding phases, For example:
> >>
> >> f(scan_jfr_weak_roots,                            "    S: JFR Weak Roots")            \
> >> f(scan_jni_weak_roots,                            "    S: JNI Weak Roots")            \
> >> f(scan_stringtable_roots,                         "    S: String Table Roots")        \
> >> f(scan_resolved_method_table_roots,               "    S: Resolved Table Roots")      \
> >> f(scan_vm_weak_roots,                             "    S: VM Weak Roots")             \
> >>
> >> Thanks,
> >>
> >> -Zhengyu
> >>
> >> On 4/11/19 7:07 AM, Ao Qi wrote:
> >>
> >> Hi,
> >>
> >> Bugs:
> >> https://bugs.openjdk.java.net/browse/JDK-8222333
> >>
> >> Webrev:
> >> http://cr.openjdk.java.net/~aoqi/8222333/webrev.00/
> >>
> >> fastdebug build is broken after JDK-8221393. It seems that
> >> phase_mapping[] doesn't match enum Phase in WeakProcessorPhases
> >> anymore. Is this fix ok? I am not familiar with shenandoah.
> >> linux-x86_64-server-release hotspot:tier1 tested.
> >>
> >> Thanks,
> >> Ao Qi



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