From: Fabien Chaix <chaix@ics.forth.gr>
Date: Thu, 16 Jun 2022 17:14:33 +0000 (+0300)
Subject: Quick and dirty fix to speed up get_host_by_name
X-Git-Tag: v3.32~175^2~2
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/0405eed965d6590a9691519a2078e43463b13148

Quick and dirty fix to speed up get_host_by_name
---

diff --git a/src/kernel/routing/NetZoneImpl.cpp b/src/kernel/routing/NetZoneImpl.cpp
index 17afb8b3c0..ad56002aec 100644
--- a/src/kernel/routing/NetZoneImpl.cpp
+++ b/src/kernel/routing/NetZoneImpl.cpp
@@ -342,15 +342,21 @@ resource::SplitDuplexLinkImpl* NetZoneImpl::get_split_duplex_link_by_name_or_nul
 
 resource::HostImpl* NetZoneImpl::get_host_by_name_or_null(const std::string& name) const
 {
+
+  auto host_it = hosts_.find(name);
+  if(host_it != hosts_.end())
+	 return host_it->second;
+/*
   for (auto const& [_, host] : hosts_) {
     if (host->get_name() == name)
-      return host;
-    /* keep old behavior where host and VMs were saved together on EngineImpl::hosts_
-     * get hosts returns VMs too */
+       return host;
+    / * keep old behavior where host and VMs were saved together on EngineImpl::hosts_
+     * get hosts returns VMs too * /
     auto* vm = host->get_vm_by_name_or_null(name);
     if (vm)
       return vm;
   }
+*/
 
   for (const auto* child : children_) {
     auto* host = child->get_host_by_name_or_null(name);