Sign Up
Log In
Log In
or
Sign Up
Places
All Projects
Status Monitor
Collapse sidebar
home:Ledest:erlang:25
erlang
0580-Add-read_concurrency-to-ssl_otp_cacertific...
Overview
Repositories
Revisions
Requests
Users
Attributes
Meta
File 0580-Add-read_concurrency-to-ssl_otp_cacertificate_db.patch of Package erlang
From 4d2fd37f33a83819d7261925e6e3a471e799659c Mon Sep 17 00:00:00 2001 From: John Altenmueller <jaltenmueller@whatsapp.com> Date: Thu, 30 Nov 2023 16:51:30 -0800 Subject: [PATCH] Add read_concurrency to ssl_otp_cacertificate_db We see lock contention on this table under high load, e.g. ``` > lcnt:inspect(db_tab, [{print, [id, colls, ratio, duration]}]). id #collisions collisions [%] duration [%] --- ------------ --------------- ------------- ssl_otp_cacertificate_db 7827 12.5136 616.1264 ssl_otp_ca_file_ref 30 0.2561 0.0026 ``` Use read_concurrency as this is a read-heavy table and this has helped reduce the lock contention seen here. --- lib/ssl/src/ssl_pkix_db.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/ssl/src/ssl_pkix_db.erl b/lib/ssl/src/ssl_pkix_db.erl index eac9e2a8b3..a6e27bd16f 100644 --- a/lib/ssl/src/ssl_pkix_db.erl +++ b/lib/ssl/src/ssl_pkix_db.erl @@ -53,7 +53,7 @@ create(PEMCacheName) -> [%% Let connection process delete trusted certs %% that can only belong to one connection. (Supplied directly %% on DER format to ssl:connect/listen.) - ets:new(ssl_otp_cacertificate_db, [set, public]), + ets:new(ssl_otp_cacertificate_db, [set, public, {read_concurrency, true}]), %% Let connection processes call ref_count/3 directly {ets:new(ssl_otp_ca_file_ref, [set, public]), ets:new(ssl_otp_ca_ref_file_mapping, [set, protected]) -- 2.35.3
Locations
Projects
Search
Status Monitor
Help
OpenBuildService.org
Documentation
API Documentation
Code of Conduct
Contact
Support
@OBShq
Terms
openSUSE Build Service is sponsored by
The Open Build Service is an
openSUSE project
.
Sign Up
Log In
Places
Places
All Projects
Status Monitor