Allow specifying initial and maximum segment sizes for DSA. Previously, the DSA segment size always started with 1MB and grew up to DSA_MAX_SEGMENT_SIZE. It was inconvenient in certain scenarios, such as when the caller desired a soft constraint on the total DSA segment size, limiting it to less than 1MB.
This commit introduces the capability to specify the initial and maximum DSA segment sizes when creating a DSA area, providing more flexibility and control over memory usage. Reviewed-by: John Naylor, Tomas Vondra Discussion: https://postgr.es/m/CAD21AoAYGGC1ePjVX0H%2Bpp9rH%3D9vuPK19nNOiu12NprdV5TVJA%40mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/bb952c8c8b13279eca039499249cb5dc60991603 Modified Files -------------- src/backend/utils/mmgr/dsa.c | 63 ++++++++++++++++++++------------------------ src/include/utils/dsa.h | 46 +++++++++++++++++++++++++++++--- 2 files changed, 71 insertions(+), 38 deletions(-)
