#definePTRS_PER_PTE 512// PTE中可包含的指针数 (21-12=9bit) #define PTRS_PER_PMD 1 #define PTRS_PER_PGD 2048 // PGD中可包含的指针数 (32-21=11bit)#definePTE_HWTABLE_PTRS (PTRS_PER_PTE) #definePTE_HWTABLE_OFF (PTE_HWTABLE_PTRS * sizeof(pte_t)) #definePTE_HWTABLE_SIZE (PTRS...
在编译成功后,我发现在kernel.release这个文件是生成的带有版本号的文件,打开后发现还是带+号,这肯定是生成这一个文件的脚本有问题所导致,继续查找,在主Makefile里面发现了生成kernel.release文件的脚本 # Store (new) KERNELRELASE string in include/config/kernel.release include/config/kernel.release: include/co...
static inline void save_old(char * from,char * to){int i; verify_area(to, sizeof(struct sigaction));for (i=0 ; i< sizeof(struct sigaction) ; i++) {put_fs_byte(*from,to);from++;to++;}} static inline void get_new(char * from,char * to){int i; for (i=0 ; i< sizeof...
Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 13 104391 83 Linux /dev/sda2 14 2078 16587112+ 83 Linux /dev/sda3 2079 2600 4192965 82 Linux swap / Solaris [root@bys3 ~]# fdisk /dev/sda The number of cylinders for this di...
# However, the default socket buffers are just set when the sock is initialised but the kernel then dynamically sizes them (unless set using setsockopt() with SO_SNDBUF). The actual size of the buffers for currently open sockets may be inspected using the ss command (part of the iproute ...
退一步讲,Kernel配置PageSize时,是否可以采用稍微大一点的值,比如16KB或者64KB。而这样的配置,ARM64架构早已经支持了。那为什么现在Linux系统的PageSize还是采用4KB,而没有哪个手机厂商说自己采用了16KB或者64KB呢? https://cateee.net/lkddb/web-lkddb/ARM64_64K_PAGES.html ...
Red Hat Enterprise Linux 8 Issue Since the size of thecrashkernelreservation is determined on a sliding scale based on the amount of memory on the server, the use ofcrashkernel=automay not accommodate the memory required to load third party modules. The use of this setting in the presence ...
In this article, we learned how to restrict the size of the buffer cache. We started by showing how to tell the Linux kernel to reclaim back the buffer cache memory more aggressively. We then leveragedcgroupsto set an upper limit on the amount of memory a process can get....
As of May 2020, Linux ranks among the top 500 most powerful operating systems globally, according to Net Applications. Additionally, based on the Linux kernel, the Android operating system boasts the largest installed base globally on tablets and smartphones. This increasing preference for embedded ...
Red Hat Enterprise Linux 7 Out-of-tree (O) kernel module: [bmhook] Subscriber exclusive content A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more. Current Customers and Partners Log in for full access ...