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Commitea9c4a1

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Add more temporary code to record stack usage at server process exit.
After a look at preliminary results from commit88cf37d,I realized it'd be a good idea to spew out the maximum depth measurementseen by check_stack_depth. So add some quick-n-dirty code to do that.Like the previous commit, this will be reverted once we've gathereda set of buildfarm runs with it.
1 parent769159f commitea9c4a1

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2 files changed

+24
-0
lines changed

2 files changed

+24
-0
lines changed

‎src/backend/storage/ipc/ipc.c‎

Lines changed: 12 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -35,6 +35,9 @@
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#include"storage/ipc.h"
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#include"tcop/tcopprot.h"
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externlongmax_measured_stack_depth;
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externlongmax_measured_register_stack_depth;
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/*
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* This flag is set during proc_exit() to change ereport()'s behavior,
@@ -121,6 +124,15 @@ report_stack_size(void)
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(int)getpid());
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(void)system(sysbuf);
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#endif
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#if defined(__ia64__)|| defined(__ia64)
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fprintf(stderr,"max measured stack depths %ldkB, %ldkB\n",
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(max_measured_stack_depth+1023) /1024,
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(max_measured_register_stack_depth+1023) /1024);
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#else
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fprintf(stderr,"max measured stack depth %ldkB\n",
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(max_measured_stack_depth+1023) /1024);
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#endif
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}
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‎src/backend/tcop/postgres.c‎

Lines changed: 12 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -96,6 +96,9 @@ intmax_stack_depth = 100;
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/* wait N seconds to allow attach from a debugger */
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intPostAuthDelay=0;
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/* Exported for use by proc_exit */
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longmax_measured_stack_depth=0;
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longmax_measured_register_stack_depth=0;
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/* ----------------
@@ -3137,6 +3140,11 @@ stack_is_too_deep(void)
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if (stack_depth<0)
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stack_depth=-stack_depth;
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/* Track max measured depth for reporting by proc_exit */
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if (stack_depth>max_measured_stack_depth&&
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stack_base_ptr!=NULL)
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max_measured_stack_depth=stack_depth;
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/*
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* Trouble?
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*
@@ -3160,6 +3168,10 @@ stack_is_too_deep(void)
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#if defined(__ia64__)|| defined(__ia64)
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stack_depth= (long) (ia64_get_bsp()-register_stack_base_ptr);
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if (stack_depth>max_measured_register_stack_depth&&
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register_stack_base_ptr!=NULL)
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max_measured_register_stack_depth=stack_depth;
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if (stack_depth>max_stack_depth_bytes&&
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register_stack_base_ptr!=NULL)
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return true;

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