On Wed, Mar 20, 2024 at 02:44:21PM +0800, mengfanhui wrote: > Zswap and zsmalloc are compression methods, and kernel configuration can be configured simultaneously. > zbud is an algorithm, and users can use that method if they want to use it.It won't affect each other. Zswap compressed swapped out pages in-memory. To store those compressed pages, it uses one of three allocators that implement the zpool API: zbud, z3fold, and zsmalloc. In that sense, zsmalloc is comparable to zbud, not zswap. I suspect you are mixing up zsmalloc and zram. Anyway, zsmalloc is the default allocator and should be better for almost all use cases. So unless you have a very good reason to use zbud over zsmalloc, please do not use zbud. We are trying to deprecate zbud and z3fold. > > 在 2024/3/20 14:00, Yosry Ahmed 写道: > > On Fri, Jan 26, 2024 at 03:55:47PM +0800, mengfanhui wrote: > >> Solution /sys/module/zswap/parameters/enabled attribute node > >> does not exist issue，handle zpool zbud initialization failed, > >> open CONFIG_ZSWAP CONFIG_ZPOOL CONFIG_ZBUD configuration,manual > >> zswap function by /sys/module/zswap/parameters/enabled file > >> > >> Signed-off-by: mengfanhui <mengfanhui@xxxxxxxxxx> > >> --- > >> arch/mips/configs/generic_defconfig | 3 +++ > >> 1 file changed, 3 insertions(+) > >> > >> diff --git a/arch/mips/configs/generic_defconfig b/arch/mips/configs/generic_defconfig > >> index 071e2205c7ed..14884df392f4 100644 > >> --- a/arch/mips/configs/generic_defconfig > >> +++ b/arch/mips/configs/generic_defconfig > >> @@ -13,6 +13,9 @@ CONFIG_CGROUP_DEVICE=y > >> CONFIG_CGROUP_CPUACCT=y > >> CONFIG_NAMESPACES=y > >> CONFIG_USER_NS=y > >> +CONFIG_ZSWAP=y > >> +CONFIG_ZPOOL=y > >> +CONFIG_ZBUD=y > > > > Any reason for choosing zbud over zsmalloc, the default zswap allocator? > > > >> CONFIG_SCHED_AUTOGROUP=y > >> CONFIG_BLK_DEV_INITRD=y > >> CONFIG_BPF_SYSCALL=y > >> -- > >> 2.25.1 > >>
