From 7300df967ea7f96c053f704677b6a359e3a219ff Mon Sep 17 00:00:00 2001 From: Joe Bowbeer <joe.bowbeer@gmail.com> Date: Tue, 22 Oct 2024 12:07:46 -0700 Subject: [PATCH] doc: Update --max-semi-space-size description Signed-off-by: Joe Bowbeer <joe.bowbeer@gmail.com> --- doc/api/cli.md | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/doc/api/cli.md b/doc/api/cli.md index cd2f4c27f322ba..9ac3309c84b231 100644 --- a/doc/api/cli.md +++ b/doc/api/cli.md @@ -3543,8 +3543,14 @@ an increase of 1 MiB to semi-space applies to each of the three individual semi-spaces and causes the heap size to increase by 3 MiB. The throughput improvement depends on your workload (see [#42511][]). -The default value is 16 MiB for 64-bit systems and 8 MiB for 32-bit systems. To -get the best configuration for your application, you should try different +In <=v19 the default value is 16 MiB for 64-bit systems and 8 MiB for 32-bit systems. +In v20 and later, however, the default value depends on the memory limit +and will be smaller than in previous versions for memory limits of 2 GiB or less. + +For example, a memory limit of 512 MiB will default to 1 MiB of semi space in v20, +whereas in v18 the default for 64-bit systems was 16 MiB. + +To get the best configuration for your application, you should try different max-semi-space-size values when running benchmarks for your application. For example, benchmark on a 64-bit systems: