一、降低cachemisses，较多高频分配和释放的零碎内存，往往会导致大量cachemisses；二、transparent_hugepage...
* We might race with alloc_surplus_hugetlb_folio() here and be unable * to convert a surplus huge page to a normal huge page. That is * not critical, though, it just means the overall size of the * pool might be one hugepage larger than it needs to be, but ...
初始化一次之后，不用了就SetActive(false)，放到内存中待机，需要使用的时候换一套数据就可以唤醒。
If new memory is added to the pool a lock has to be * still taken. So any user relying on locklessness has to ensure * that sufficient memory is preallocated. * * The basic atomic operation of this allocator is cmpxchg on long. * On architectures that don't have NMI-safe cmpxchg...
The Memory Manager supports huge page only if the file offset and the physical address are 1gb aligned.FallbackAlignmentShiftIf DAX_ALLOC_ALIGNMENT_FLAG_FALLBACK_SPECIFIED is present in Flags, this field specifies a fallback block size to align the given offset of the file whenever allocat...
__page_cache_alloc mempool_alloc_pages A simple mempool-backed page allocator that allocates pages* of the order specified by pool_data. kmalloc_order To avoid unnecessary overhead, we pass through large allocation requests* directly to the page allocator. We use __GFP_COMP, because we will...
> I allocate the memory, using rte_mempool_create("node_pool", (128 * 1024 * > 1024 - 1), 256, 256, 0, NULL, NULL, NULL, NULL, rte_socket_id(), 0). That is > when I see the message. And the call to allocate the memory is successful, ...
privatevoidallocate(PoolThreadCachecache,PooledByteBuf<T>buf,finalintreqCapacity){//对入参reqCapacity 申请内存大小 size 标准化,如果不是 2 的整数倍将转化成 2 的整数倍finalintnormCapacity=normalizeCapacity(reqCapacity);if(isTinyOrSmall(normCapacity)){// capacity < pageSizeinttableIdx;PoolSubpage<...