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authorSverker Eriksson <[email protected]>2014-06-12 17:26:00 +0200
committerSverker Eriksson <[email protected]>2014-06-12 17:26:00 +0200
commitd284f024154cd8b1f8da219d716ad5aa6e8f539c (patch)
treee0b395ecaa02423087e08edd7c36ce992786aeb0
parent1f0d7a0e7551fb8ca36996d301a2a4025ebc2419 (diff)
parent02c00c02bedde6bad018eef490527aa513fbd552 (diff)
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Merge branch 'sverk/etp-alloc-stats' into maint
* sverk/etp-alloc-stats: erts: Fix documentation for no of default allocator instances erts: Add etp-alloc-stats and etp-alloc-instances
-rw-r--r--erts/doc/src/erts_alloc.xml14
-rw-r--r--erts/etc/unix/etp-commands.in146
2 files changed, 150 insertions, 10 deletions
diff --git a/erts/doc/src/erts_alloc.xml b/erts/doc/src/erts_alloc.xml
index c9eca39a99..1ade41f1aa 100644
--- a/erts/doc/src/erts_alloc.xml
+++ b/erts/doc/src/erts_alloc.xml
@@ -4,7 +4,7 @@
<cref>
<header>
<copyright>
- <year>2002</year><year>2013</year>
+ <year>2002</year><year>2014</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
@@ -531,15 +531,9 @@
<p>Multiple, thread specific instances of the allocator.
This option will only have any effect on the runtime system
with SMP support. Default behaviour on the runtime system with
- SMP support:</p>
- <taglist>
- <tag><c>ll_alloc</c></tag>
- <item><c>1</c> instance.</item>
- <tag>Other allocators</tag>
- <item><c>NoSchedulers+1</c> instances. Each scheduler will use
- a lock-free instance of its own and other threads will use
- a common instance.</item>
- </taglist>
+ SMP support is <c>NoSchedulers+1</c> instances. Each scheduler will use
+ a lock-free instance of its own and other threads will use
+ a common instance.</p>
<p>It was previously (before ERTS version 5.9) possible to configure
a smaller amount of thread specific instances than schedulers.
This is, however, not possible any more.</p>
diff --git a/erts/etc/unix/etp-commands.in b/erts/etc/unix/etp-commands.in
index 19c92681d0..bf6eb00314 100644
--- a/erts/etc/unix/etp-commands.in
+++ b/erts/etc/unix/etp-commands.in
@@ -2842,6 +2842,152 @@ document etp-search-alloc
end
+define etp-alloc-stats
+ printf "\nIx Name Inst. Blocks Bytes Carriers Crr.bytes Util\n"
+ set $etp_tot_block_no = 0
+ set $etp_tot_block_sz = 0
+ set $etp_tot_crr_no = 0
+ set $etp_tot_crr_sz = 0
+ set $etp_ERTS_ALC_A_MIN = 1
+ set $etp_ERTS_ALC_A_MAX = (sizeof(erts_allctrs) / sizeof(*erts_allctrs)) - 1
+
+ set $etp_ix = $etp_ERTS_ALC_A_MIN
+ while $etp_ix <= $etp_ERTS_ALC_A_MAX
+ set $etp_allctr = 0
+ set $etp_alloc = erts_allctrs[$etp_ix].alloc
+ if $etp_alloc != erts_sys_alloc
+ if $etp_alloc == erts_alcu_alloc_thr_spec || \
+ $etp_alloc == erts_alcu_alloc_thr_pref
+ set $etp_instance = 0
+ set $etp_block_no = 0
+ set $etp_block_sz = 0
+ set $etp_crr_no = 0
+ set $etp_crr_sz = 0
+ set $etp_tspec = (ErtsAllocatorThrSpec_t *) erts_allctrs[$etp_ix].extra
+ if $etp_tspec->enabled
+ while $etp_instance < $etp_tspec->size
+ set $etp_allctr = $etp_tspec->allctr[$etp_instance]
+ set $etp_block_no = $etp_block_no + $etp_allctr->mbcs.blocks.curr.no \
+ + $etp_allctr->sbcs.blocks.curr.no
+ set $etp_block_sz = $etp_block_sz + $etp_allctr->mbcs.blocks.curr.size \
+ + $etp_allctr->sbcs.blocks.curr.size
+ set $etp_crr_no = $etp_crr_no + $etp_allctr->mbcs.curr.norm.mseg.no \
+ + $etp_allctr->sbcs.curr.norm.mseg.no \
+ + $etp_allctr->mbcs.curr.norm.sys_alloc.no \
+ + $etp_allctr->sbcs.curr.norm.sys_alloc.no
+ set $etp_crr_sz = $etp_crr_sz + $etp_allctr->mbcs.curr.norm.mseg.size \
+ + $etp_allctr->sbcs.curr.norm.mseg.size \
+ + $etp_allctr->mbcs.curr.norm.sys_alloc.size \
+ + $etp_allctr->sbcs.curr.norm.sys_alloc.size
+ set $etp_instance = $etp_instance + 1
+ end
+ else
+ printf "erts_allctr[%d]: Disabled (thread specific)\n", $etp_ix
+ end
+ else
+ if $etp_alloc == erts_alcu_alloc_ts || $etp_alloc == erts_alcu_alloc
+ set $etp_allctr = (Allctr_t*) erts_allctrs[$etp_ix].extra
+ set $etp_block_no = $etp_allctr->mbcs.blocks.curr.no \
+ + $etp_allctr->sbcs.blocks.curr.no
+ set $etp_block_sz = $etp_allctr->mbcs.blocks.curr.size \
+ + $etp_allctr->sbcs.blocks.curr.size
+ set $etp_crr_no = $etp_allctr->mbcs.curr.norm.mseg.no \
+ + $etp_allctr->sbcs.curr.norm.mseg.no \
+ + $etp_allctr->mbcs.curr.norm.sys_alloc.no \
+ + $etp_allctr->sbcs.curr.norm.sys_alloc.no
+ set $etp_crr_sz = $etp_allctr->mbcs.curr.norm.mseg.size \
+ + $etp_allctr->sbcs.curr.norm.mseg.size \
+ + $etp_allctr->mbcs.curr.norm.sys_alloc.size \
+ + $etp_allctr->sbcs.curr.norm.sys_alloc.size
+ set $etp_instance = 1
+ else
+ printf "erts_allctr[%d]: Unknown allocation function: ", $etp_ix
+ p $etp_alloc
+ end
+ end
+ end
+ if $etp_allctr != 0
+ printf "%2d %-8s%2d%12lu%13lu%12lu%13lu", $etp_ix, $etp_allctr->name_prefix, \
+ $etp_instance, \
+ $etp_block_no, $etp_block_sz, $etp_crr_no, $etp_crr_sz
+ if $etp_crr_sz != 0
+ printf "%5lu%%", ($etp_block_sz * 100) / $etp_crr_sz
+ end
+ printf "\n"
+ set $etp_tot_block_no = $etp_tot_block_no + $etp_block_no
+ set $etp_tot_block_sz = $etp_tot_block_sz + $etp_block_sz
+ set $etp_tot_crr_no = $etp_tot_crr_no + $etp_crr_no
+ set $etp_tot_crr_sz = $etp_tot_crr_sz + $etp_crr_sz
+ end
+ set $etp_ix = $etp_ix + 1
+ end
+ printf "\nTotal: %12lu%13lu%12lu%13lu", $etp_tot_block_no, $etp_tot_block_sz, \
+ $etp_tot_crr_no, $etp_tot_crr_sz
+ if $etp_tot_crr_sz != 0
+ printf "%5lu%%", ($etp_tot_block_sz * 100) / $etp_tot_crr_sz
+ end
+ printf "\n"
+end
+
+document etp-alloc-stats
+%---------------------------------------------------------------------------
+% etp-alloc-stats
+%
+% Combine and print allocator statistics
+%---------------------------------------------------------------------------
+end
+
+
+define etp-alloc-instances
+ set $etp_ERTS_ALC_A_MIN = 1
+ set $etp_ERTS_ALC_A_MAX = (sizeof(erts_allctrs) / sizeof(*erts_allctrs)) - 1
+
+ set $etp_ix = $arg0
+ if $etp_ix >= $etp_ERTS_ALC_A_MIN && $etp_ix <= $etp_ERTS_ALC_A_MAX
+ set $etp_allctr = 0
+ set $etp_alloc = erts_allctrs[$etp_ix].alloc
+ if $etp_alloc == erts_sys_alloc
+ printf "Allocator %d is sys_alloc\n", $etp_ix
+ else
+ if $etp_alloc == erts_alcu_alloc_thr_spec || \
+ $etp_alloc == erts_alcu_alloc_thr_pref
+ set $etp_instance = 0
+ set $etp_tspec = (ErtsAllocatorThrSpec_t *) erts_allctrs[$etp_ix].extra
+ if $etp_tspec->enabled
+ printf "All instances for allocator '%s'\n", $etp_tspec->allctr[0]->name_prefix
+ while $etp_instance < $etp_tspec->size
+ p $etp_tspec->allctr[$etp_instance]
+ set $etp_instance = $etp_instance + 1
+ end
+ else
+ printf "erts_allctr[%d]: Disabled (thread specific)\n", $etp_ix
+ end
+ else
+ if $etp_alloc == erts_alcu_alloc_ts || $etp_alloc == erts_alcu_alloc
+ set $etp_allctr = (Allctr_t*) erts_allctrs[$etp_ix].extra
+ printf "Single instances for allocator '%s'\n", $etp_allctr->name_prefix
+ p $etp_allctr
+ else
+ printf "erts_allctr[%d]: Unknown allocation function: ", $etp_ix
+ p $etp_alloc
+ end
+ end
+ end
+ else
+ printf "Allocator type not between %d and %d\n", $etp_ERTS_ALC_A_MIN, $etp_ERTS_ALC_A_MAX
+ end
+end
+
+document etp-alloc-instances
+%---------------------------------------------------------------------------
+% etp-alloc-instances
+%
+% Print pointers to all allocator instances for a specific type (Ix)
+%---------------------------------------------------------------------------
+end
+
+
+
define etp-overlapped-heaps
# Args: