synch_toggle

引用\[1\]:在MySQL中，当`(table_share_hash).count=(table_share_hash).size`时，会增加`Performance_schema_table_instances_lost`的值。这会导致新的表监控不会被收集。为了解决这个问题，可以通过删除一些不再使用的表来降低`(table_share_hash).count`的值。\[1\]

引用\[2\]:`gadget zero`可以通过两种方式创建。一种是通过`zero_driver`创建，只需将对应的驱动文件`drivers\usb\gadget\legacy\zero.c`编译到内核中。另一种是通过`functionfs`动态创建，这种方式更加灵活。创建实例的命令如下：

mount -t configfs none /sys/kernel/config
cd /sys/kernel/config/usb_gadget
mkdir g2
cd g2
echo "0x04e8" > idVendor
echo "0x2d01" > idProduct
mkdir configs/c.1
mkdir configs/c.2
mkdir functions/Loopback.0
mkdir functions/SourceSink.0
mkdir strings/0x409
mkdir configs/c.1/strings/0x409
mkdir configs/c.2/strings/0x409
echo "0x0525" > idVendor
echo "0xa4a0" > idProduct
echo "0123456789" > strings/0x409/serialnumber
echo "Samsung Inc." > strings/0x409/manufacturer
echo "Bar Gadget" > strings/0x409/product
echo "Conf 1" > configs/c.1/strings/0x409/configuration
echo "Conf 2" > configs/c.2/strings/0x409/configuration
echo 120 > configs/c.1/MaxPower
ln -s functions/Loopback.0 configs/c.2
ln -s functions/SourceSink.0 configs/c.1
echo 4100000.udc-controller > UDC

\[2\]

引用\[3\]:`synch_toggle`是一个未提及的术语，无法给出具体的解释或引用内容。请提供更多上下文或详细信息以便我能够帮助您回答问题。
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