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Increase the open file limit on OS X to 1024

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The default (256) is too low for pages that load a lot of resources all at
once. See https://codereview.chromium.org/125151 and bugs like
https://code.google.com/p/chromium/issues/detail?id=14137 and
https://code.google.com/p/chromium/issues/detail?id=151039. The new limit
matches what Chrome itself uses.
This commit is contained in:
Adam Roben 2014-01-31 10:38:12 -05:00
parent 8b80473ef9
commit f7fb6371c2
2 changed files with 31 additions and 0 deletions
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1
brightray/browser/browser_main_parts.h
View file

@ -27,6 +27,7 @@ class BrowserMainParts : public content::BrowserMainParts {
virtual BrowserContext* CreateBrowserContext();
#if defined(OS_MACOSX)
virtual void PreEarlyInitialization() OVERRIDE;
virtual void PreMainMessageLoopStart() OVERRIDE;
#endif

30
brightray/browser/browser_main_parts_mac.mm
View file

@ -1,10 +1,40 @@
#import "browser_main_parts.h"
#import "base/logging.h"
#import "base/mac/bundle_locations.h"
#import <AppKit/AppKit.h>
namespace brightray {
namespace {
// Sets the file descriptor soft limit to |max_descriptors| or the OS hard limit, whichever is
// lower.
void SetFileDescriptorLimit(rlim_t max_descriptors) {
rlimit limits;
if (getrlimit(RLIMIT_NOFILE, &limits) != 0) {
PLOG(INFO) << "Failed to get file descriptor limit";
return;
}
auto new_limit = max_descriptors;
if (limits.rlim_max > 0)
new_limit = std::min(new_limit, limits.rlim_max);
limits.rlim_cur = new_limit;
if (setrlimit(RLIMIT_NOFILE, &limits) != 0)
PLOG(INFO) << "Failed to set file descriptor limit";
}
} // namespace
void BrowserMainParts::PreEarlyInitialization() {
// We use quite a few file descriptors for our IPC, and the default limit on the Mac is low (256),
// so bump it up.
// See http://src.chromium.org/viewvc/chrome/trunk/src/chrome/browser/chrome_browser_main_posix.cc?revision=244734#l295
// and https://codereview.chromium.org/125151
SetFileDescriptorLimit(1024);
}
// Replicates NSApplicationMain, but doesn't start a run loop.
void BrowserMainParts::PreMainMessageLoopStart() {
auto infoDictionary = base::mac::OuterBundle().infoDictionary;