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VM Preflet: More correctly calculate default swap

This commit is contained in:
Alexander von Gluck IV 2012-09-07 00:46:14 +00:00
parent 5dff42570e
commit f18cace156
1 changed files with 9 additions and 1 deletions
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10
src/preferences/virtualmemory/Settings.cpp
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@ -28,6 +28,7 @@
static const char* const kWindowSettingsFile = "virtualmemory_preferences"; static const char* const kWindowSettingsFile = "virtualmemory_preferences";
static const char* const kVirtualMemorySettings = "virtual_memory"; static const char* const kVirtualMemorySettings = "virtual_memory";
static const off_t kMegaByte = 1024 * 1024; static const off_t kMegaByte = 1024 * 1024;
static const off_t kGigaByte = kMegaByte * 1024;
Settings::Settings() Settings::Settings()
@ -37,7 +38,14 @@ Settings::Settings()
system_info sysInfo; system_info sysInfo;
get_system_info(&sysInfo); get_system_info(&sysInfo);
fDefaultSettings.size = (off_t)sysInfo.max_pages * B_PAGE_SIZE * 2;
fDefaultSettings.size = (off_t)sysInfo.max_pages * B_PAGE_SIZE;
if (fDefaultSettings.size <= kGigaByte) {
// Memory under 1GB? double the swap
// This matches the behaviour of the kernel
fDefaultSettings.size *= 2;
}
fDefaultSettings.volume = dev_for_path("/boot"); fDefaultSettings.volume = dev_for_path("/boot");
} }