Robert Haas 46846433a0 shm_mq: Update mq_bytes_written less often. ...

Do not update shm_mq's mq_bytes_written until we have written
an amount of data greater than 1/4th of the ring size, unless
the caller of shm_mq_send(v) requests a flush at the end of
the message. This reduces the number of calls to SetLatch(),
and also the number of CPU cache misses, considerably, and thus
makes shm_mq significantly faster.

Dilip Kumar, reviewed by Zhihong Yu and Tomas Vondra. Some
minor cosmetic changes by me.

Discussion: http://postgr.es/m/CAFiTN-tVXqn_OG7tHNeSkBbN+iiCZTiQ83uakax43y1sQb2OBA@mail.gmail.com

2021-10-14 16:13:36 -04:00

..

barrier.c

Update copyright for 2021

2021-01-02 13:06:25 -05:00

dsm_impl.c

Update copyright for 2021

2021-01-02 13:06:25 -05:00

dsm.c

Hold interrupts while running dsm_detach() callbacks.

2021-02-15 14:27:33 +13:00

ipc.c

Update copyright for 2021

2021-01-02 13:06:25 -05:00

ipci.c

Introduce GUC shared_memory_size_in_huge_pages

2021-09-21 10:31:58 +09:00

latch.c

Initial pgindent and pgperltidy run for v14.

2021-05-12 13:14:10 -04:00

Makefile

Split all OBJS style lines in makefiles into one-line-per-entry style.

2019-11-05 14:41:07 -08:00

pmsignal.c

Update copyright for 2021

2021-01-02 13:06:25 -05:00

procarray.c

Fix variable shadowing in procarray.c.

2021-09-16 13:06:21 +09:00

procsignal.c

Initial pgindent and pgperltidy run for v14.

2021-05-12 13:14:10 -04:00

shm_mq.c

shm_mq: Update mq_bytes_written less often.

2021-10-14 16:13:36 -04:00

shm_toc.c

Fix calculation of how much shared memory is required to store a TOC.

2021-01-15 12:44:17 +09:00

shmem.c

Update copyright for 2021

2021-01-02 13:06:25 -05:00

shmqueue.c

Update copyright for 2021

2021-01-02 13:06:25 -05:00

signalfuncs.c

Fix lack of message pluralization

2021-07-14 09:15:14 +02:00

sinval.c

Update copyright for 2021

2021-01-02 13:06:25 -05:00

sinvaladt.c

Update copyright for 2021

2021-01-02 13:06:25 -05:00

standby.c

Fix duplicate words in comments

2021-10-04 15:12:57 +02:00