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assume 10% of active pages can be compressed on macOS UMA

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Lizonghang 2025-02-11 11:06:33 +04:00
parent 261c88f058
commit 24974a488c
1 changed files with 2 additions and 2 deletions
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4
common/profiler.cpp
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@ -521,9 +521,9 @@ static uint64_t device_host_physical_memory(bool available) {
// active pages compression has higher priority than releasing the clean mmap-ed pages
// some of the active pages can be compressed to save memory for our mmap-ed model weights
if (is_uma_arch()) {
// assume 30% of active pages can be compressed on macOS UMA (an empirical value)
// assume 10% of active pages can be compressed on macOS UMA (an empirical value)
// because GPU is more likely to use the inactive memory
memory += vm_stats.active_count * 0.3 * page_size;
memory += vm_stats.active_count * 0.1 * page_size;
} else {
// assume 50% of active pages can be compressed on macOS NUMA (an empirical value)
memory += vm_stats.active_count * 0.5 * page_size;