Please set vm.max_map_count to be 2000000 under root using 'sysctl -w vm.max_map_count=2000000'.

Sure, to set the `vm.max_map_count` to `2000000` under root using `sysctl`, you can run the following command:

sudo sysctl -w vm.max_map_count=2000000

This will temporarily set the value of `vm.max_map_count` to `2000000`. If you want to make this change persistent, you can add the following line to the `/etc/sysctl.conf` file:

vm.max_map_count=2000000

This will ensure that the value of `vm.max_map_count` is set to `2000000` every time the system is booted.

相关问题

vm.admin_reserve_kbytes = 8192 vm.block_dump = 0 vm.compact_unevictable_allowed = 1 vm.dirty_background_bytes = 0 vm.dirty_background_ratio = 10 vm.dirty_bytes = 0 vm.dirty_expire_centisecs = 3000 vm.dirty_ratio = 20 vm.dirty_writeback_centisecs = 500 vm.dirtytime_expire_seconds = 43200 vm.drop_caches = 3 vm.extfrag_threshold = 500 vm.hugepages_treat_as_movable = 0 vm.hugetlb_shm_group = 0 vm.laptop_mode = 0 vm.legacy_va_layout = 0 vm.lowmem_reserve_ratio = 256 256 32 1 vm.max_map_count = 65530 vm.memory_failure_early_kill = 0 vm.memory_failure_recovery = 1 vm.min_free_kbytes = 67584 vm.min_slab_ratio = 5 vm.min_unmapped_ratio = 1 vm.mmap_min_addr = 65536 vm.mmap_rnd_bits = 28 vm.mmap_rnd_compat_bits = 8 vm.nr_hugepages = 0 vm.nr_hugepages_mempolicy = 0 vm.nr_overcommit_hugepages = 0 vm.numa_stat = 1 vm.numa_zonelist_order = Node vm.oom_dump_tasks = 1 vm.oom_kill_allocating_task = 0 vm.overcommit_kbytes = 0 vm.overcommit_memory = 0 vm.overcommit_ratio = 50 vm.page-cluster = 3 vm.panic_on_oom = 0 vm.percpu_pagelist_fraction = 0 vm.stat_interval = 1 vm.swappiness = 60 vm.user_reserve_kbytes = 131072 vm.vfs_cache_pressure = 100 vm.watermark_scale_factor = 10 vm.zone_reclaim_mode = 0

这是一个包含多个与虚拟内存相关的系统参数的列表。以下是其中一些参数的解释：

- `vm.max_map_count`：最大映射数量，限制了内存中可以同时映射的页面数量，从而影响了缓存的大小。

- `vm.dirty_background_bytes` 和 `vm.dirty_background_ratio`：脏页的阈值，当脏页的数量超过该阈值时，系统会开始写回脏页。

- `vm.dirty_bytes` 和 `vm.dirty_ratio`：系统允许脏页占用的内存大小的上限。

- `vm.min_free_kbytes`：系统保留的空闲内存的大小，当空闲内存低于该值时，系统会开始清理缓存。

- `vm.swappiness`：控制系统在内存不足时使用交换空间的程度，该参数的值越高，系统越可能使用交换空间。

你可以使用 `sysctl` 命令来修改这些参数的值，具体的命令如下：

sysctl -w <parameter>=<value>

其中 `<parameter>` 表示参数名，`<value>` 表示你希望设置的值。请注意，该命令的修改是临时的，如果你想要永久生效，需要将修改写入到 `/etc/sysctl.conf` 配置文件中。

vm.max_map_count

vm.max_map_count是一个参数，它限制了一个进程可以拥有的虚拟内存区域(VMA)的数量。当这个值太低时，会出现报错信息，提示"max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]"。要查看当前的值，可以使用命令"sysctl -a|grep vm.max_map_count"。如果需要增加这个值，可以在/etc/sysctl.conf文件中添加一行"vm.max_map_count=262144"。这样做可以永久地将这个值设置为262144。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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