search for: lwlock

...es enabled. When running without enabling the probes I have approx 25% of idle time. Expect there is some wait queue forming (and time being spend) on some locks. Fortunately there are some USDT for this to enable closer inspection. Overenthusiastically I used the following script: postgresql*:::lwlock-acquire { thee line action } and the same for the corresponding release-, the waitstart- and the waitend probes. Result: had to reboot my T2000 by using the system console and powering it off and on again after waiting for more than 12 hours to see if it came back. (used -x dynvarsize=8m) Sure to...

On Thu, Sep 3, 2015 at 6:45 PM, Kostya Serebryany <kcc at google.com> wrote: > Did you build the Postgres code with -fsanitize-coverage=... ? Yes: CC = clang CFLAGS = -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -Wno-unused-command-line-argument -g -O0 -fsanitize=address

...torage/ipc/shmem.o > storage/ipc/shmqueue.o storage/ipc/shm_mq.o storage/ipc/shm_toc.o > storage/ipc/sinval.o storage/ipc/sinvaladt.o storage/ipc/standby.o > storage/large_object/inv_api.o storage/lmgr/lmgr.o storage/lmgr/lock.o > storage/lmgr/proc.o storage/lmgr/deadlock.o storage/lmgr/lwlock.o > storage/lmgr/spin.o storage/lmgr/s_lock.o storage/lmgr/predicate.o > storage/page/bufpage.o storage/page/checksum.o storage/page/itemptr.o > storage/smgr/md.o storage/smgr/smgr.o storage/smgr/smgrtype.o > tcop/dest.o tcop/fastpath.o tcop/postgres.o tcop/pquery.o > tcop/utility.o...