参数numpages表示入参是页(PAGE_SIZE)的个数。 代码通过set_pte_bit将此页面属性修改成只读或者读写: set_memory_ro-> change_memory_common(,,__pgprot(PTE_RDONLY),) ->__change_memory_common ->set_pte_bit(pte, cdata->set_mask) 函数用法举例 简单验证: voidvaddr= vmalloc(PAGE_SIZE * PAGE_NUM...
该方案仍然是基于PTE的accessed bit,通过在page_ext_flags引入了额外的idle&&young page flag来保证page reclaim的逻辑不受此影响(译者注:此处关于idle page tracking实现的描述不够准确,译者理解如下:方案一的缺陷在于清理PTE的accessed bit会导致page reclaim的逻辑误判某些热页为冷页,那么通过引入一个软件上的young ...
pte=pte_set_fixmap_offset(pmd,addr); do{ pte_told_pte=*pte; Expand All@@ -150,25 +140,45 @@ static void alloc_init_pte(pmd_t *pmd, unsigned long addr, pte_clear_fixmap(); } staticvoidalloc_init_pmd(pud_t*pud,unsigned longaddr,unsigned longend, ...
NVIDIA GeForce RTX 3090 Nvidia driver version: 545.23.08 cuDNN version: Could not collect HIP runtime version: N/A MIOpen runtime version: N/A Is XNNPACK available: True CPU: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 39 bits physical, 48 bits virtual Byte ...
promotionCode string Az előléptetési kód. publisher string A közzétevő azonosítója. ProtocolTypes A WinRM-figyelő protokollját adja meg. Lehetséges értékek: http,https. Táblázat kibontása NameTípusDescription Http string Https string ProxyAgentSettings ProxyAgent-beállít...
6. 实验:PTE Accessed Bit 这些方法使用页表条目(PTE)“已访问”位,通常由 CPU MMU 在访问内存页面时更新,并且可以由内核读取和清除。这可用于提供基于页面的 WSS 估计,方法是清除所有进程页面上的访问位,等待一段时间,然后检查该位返回到多少页。当访问的位被更新时,它的优点是没有额外的开销,因为 MMU 无论...
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A valid page is one whose page table entry (PTE) valid bit is set. Execution of asynchronous system trap (AST) procedures, condition handlers, and system services that touch pageable process-private space can cause additional faults into the working set. The working set continues to grow as ...
*/staticinlinevoidio_remap_pte_range(struct mm_struct *mm,pte_t* pte,unsignedlongaddress,unsignedlongsize,unsignedlongoffset,pgprot_tprot,intspace){unsignedlongend;/* clear hack bit that was used as a write_combine side-effect flag */offset &= ~0x1UL; ...
ptE Return the state of the port E (PORTE) with each bit indicating the state of input/output [0:7] respectively. The default pin assignments are: = not used (optional table switching), = 4WD/Table Switching Input = not used, = not used, = Output 1 = not used, = not...