Magic-Mirror/gecko-dev
1
0
Fork 0
mirror of https://github.com/mozilla/gecko-dev.git synced 2024-10-10 03:45:46 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Bug 594121 - Nice the child process. r=dougt a=blocking-fennec

Browse Source
This commit is contained in:
Alon Zakai 2010-11-05 09:38:17 -07:00
parent acb20a5fc5
commit 09a4b0eacb
1 changed files with 21 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
dom/ipc/ContentChild.cpp
View File

@ -82,6 +82,14 @@
#include "nsPermissionManager.h"
#endif
#if defined(ANDROID) || defined(LINUX)
#include <sys/time.h>
#include <sys/resource.h>
// TODO: For other platforms that support setpriority, figure out
// appropriate values of niceness
static const int kRelativeNiceness = 10;
#endif
using namespace mozilla::ipc;
using namespace mozilla::net;
using namespace mozilla::places;
@ -209,7 +217,19 @@ ContentChild::Init(MessageLoop* aIOLoop,
#endif
NS_ASSERTION(!sSingleton, "only one ContentChild per child");
#if defined(ANDROID) || defined(LINUX)
// XXX We change the behavior of Linux child processes here. That
// means that, not just in Fennec, but also in Firefox, once it has
// child processes, those will be niced. IOW, Firefox with child processes
// will have different performance profiles on Linux than other
// platforms. This may alter Talos results and so forth.
char* relativeNicenessStr = getenv("MOZ_CHILD_PROCESS_RELATIVE_NICENESS");
setpriority(PRIO_PROCESS, 0, getpriority(PRIO_PROCESS, 0) +
(relativeNicenessStr ? atoi(relativeNicenessStr) :
kRelativeNiceness));
#endif
Open(aChannel, aParentHandle, aIOLoop);
sSingleton = this;