From d370290687b9ad1fb7b1e64abf43076aec4221e5 Mon Sep 17 00:00:00 2001 From: David Wilson Date: Sat, 24 Mar 2018 22:15:24 +0545 Subject: [PATCH] docs: one more warning --- docs/api.rst | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/docs/api.rst b/docs/api.rst index e8743241..adc30c99 100644 --- a/docs/api.rst +++ b/docs/api.rst @@ -544,8 +544,14 @@ Router Class * third party package state (such as urllib3's HTTP connection pool) attempting to write to file descriptors shared with the parent. + * memory mappings for large files that cannot have their space freed on disk due to the mapping living on in the child. + + * Difficult to diagnose memory usage spikes due to large object graphs + present in the parent being unreferenced in the child, causing + immediate copy-on-write to large portions of the process heap. + * thread locks held in the parent producing random deadlocks in the child.