diff options
| -rw-r--r-- | src/vpp/conf/startup.conf | 2 | ||||
| -rw-r--r-- | src/vpp/vnet/main.c | 8 | ||||
| -rw-r--r-- | src/vppinfra/linux/mem.c | 38 | ||||
| -rw-r--r-- | src/vppinfra/mem.h | 18 |
4 files changed, 29 insertions, 37 deletions
diff --git a/src/vpp/conf/startup.conf b/src/vpp/conf/startup.conf index d96a4307231..ee10faa8683 100644 --- a/src/vpp/conf/startup.conf +++ b/src/vpp/conf/startup.conf @@ -51,6 +51,8 @@ socksvr { ## special keyword 'default-hugepage' will use system default hugepage ## size # main-heap-page-size 1G + ## Set the default huge page size. + # default-hugepage-size 1G #} cpu { diff --git a/src/vpp/vnet/main.c b/src/vpp/vnet/main.c index bf1eb7a1d1d..695c358f765 100644 --- a/src/vpp/vnet/main.c +++ b/src/vpp/vnet/main.c @@ -111,6 +111,7 @@ main (int argc, char *argv[]) u8 *sizep; u32 size; clib_mem_page_sz_t main_heap_log2_page_sz = CLIB_MEM_PAGE_SZ_DEFAULT; + clib_mem_page_sz_t default_log2_hugepage_sz = CLIB_MEM_PAGE_SZ_UNKNOWN; unformat_input_t input, sub_input; u8 *s = 0, *v = 0; int main_core = 1; @@ -291,6 +292,10 @@ defaulted: unformat_log2_page_size, &main_heap_log2_page_sz)) ; + else if (unformat (&sub_input, "default-hugepage-size %U", + unformat_log2_page_size, + &default_log2_hugepage_sz)) + ; else { fformat (stderr, "unknown 'memory' config input '%U'\n", @@ -329,6 +334,9 @@ defaulted: /* Figure out which numa runs the main thread */ __os_numa_index = clib_get_current_numa_node (); + if (default_log2_hugepage_sz != CLIB_MEM_PAGE_SZ_UNKNOWN) + clib_mem_set_log2_default_hugepage_size (default_log2_hugepage_sz); + /* and use the main heap as that numa's numa heap */ clib_mem_set_per_numa_heap (main_heap); vlib_main_init (); diff --git a/src/vppinfra/linux/mem.c b/src/vppinfra/linux/mem.c index 036890f9c8d..3b752cf43cf 100644 --- a/src/vppinfra/linux/mem.c +++ b/src/vppinfra/linux/mem.c @@ -75,40 +75,6 @@ map_unlock () clib_atomic_release (&clib_mem_main.map_lock); } -__clib_export uword -clib_mem_get_default_hugepage_size (void) -{ - unformat_input_t input; - static u32 size = 0; - int fd; - - if (size) - goto done; - - /* - * If the kernel doesn't support hugepages, /proc/meminfo won't - * say anything about it. Use the regular page size as a default. - */ - size = clib_mem_get_page_size () / 1024; - - if ((fd = open ("/proc/meminfo", 0)) == -1) - return 0; - - unformat_init_clib_file (&input, fd); - - while (unformat_check_input (&input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (&input, "Hugepagesize:%_%u kB", &size)) - ; - else - unformat_skip_line (&input); - } - unformat_free (&input); - close (fd); -done: - return 1024ULL * size; -} - static clib_mem_page_sz_t legacy_get_log2_default_hugepage_size (void) { @@ -156,6 +122,8 @@ clib_mem_main_init () else /* likely kernel older than 4.14 */ mm->log2_default_hugepage_sz = legacy_get_log2_default_hugepage_size (); + mm->log2_sys_default_hugepage_sz = mm->log2_default_hugepage_sz; + /* numa nodes */ va = mmap (0, page_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); @@ -270,7 +238,7 @@ clib_mem_vm_create_fd (clib_mem_page_sz_t log2_page_size, char *fmt, ...) if (log2_page_size == mm->log2_page_sz) log2_page_size = CLIB_MEM_PAGE_SZ_DEFAULT; - else if (log2_page_size == mm->log2_default_hugepage_sz) + else if (log2_page_size == mm->log2_sys_default_hugepage_sz) log2_page_size = CLIB_MEM_PAGE_SZ_DEFAULT_HUGE; switch (log2_page_size) diff --git a/src/vppinfra/mem.h b/src/vppinfra/mem.h index 1cab0ae7252..dfe8de93626 100644 --- a/src/vppinfra/mem.h +++ b/src/vppinfra/mem.h @@ -130,9 +130,12 @@ typedef struct /* log2 system page size */ clib_mem_page_sz_t log2_page_sz; - /* log2 system default hugepage size */ + /* log2 default hugepage size */ clib_mem_page_sz_t log2_default_hugepage_sz; + /* log2 system default hugepage size */ + clib_mem_page_sz_t log2_sys_default_hugepage_sz; + /* bitmap of available numa nodes */ u32 numa_node_bitmap; @@ -470,15 +473,26 @@ clib_mem_get_page_size (void) return 1ULL << clib_mem_main.log2_page_sz; } +static_always_inline void +clib_mem_set_log2_default_hugepage_size (clib_mem_page_sz_t log2_page_sz) +{ + clib_mem_main.log2_default_hugepage_sz = log2_page_sz; +} + static_always_inline clib_mem_page_sz_t clib_mem_get_log2_default_hugepage_size () { return clib_mem_main.log2_default_hugepage_sz; } +static_always_inline uword +clib_mem_get_default_hugepage_size (void) +{ + return 1ULL << clib_mem_main.log2_default_hugepage_sz; +} + int clib_mem_vm_create_fd (clib_mem_page_sz_t log2_page_size, char *fmt, ...); uword clib_mem_get_fd_page_size (int fd); -uword clib_mem_get_default_hugepage_size (void); clib_mem_page_sz_t clib_mem_get_fd_log2_page_size (int fd); uword clib_mem_vm_reserve (uword start, uword size, clib_mem_page_sz_t log2_page_sz); |