curvefs/client: get and set counts #2950
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通过以下步骤将指标增加：
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Ziy1-Tan
approved these changes
Dec 8, 2023
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cicicheck |
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cicheck |
wuhongsong
approved these changes
Dec 9, 2023
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What problem does this PR solve?
Issue Number: #2841
Problem Summary: Get和Set方法会加到线程池，大量Get和Set的情况下线程池里的任务会大量堆积，这里使用bvar变量对线程池里的Get和Set进行计数。
What is changed and how it works?
What's Changed:
client_metric.h：结构体KVClientManagerMetric中增加了两个bvar变量（getQueueSize和setQueueSize）分别用来对Get和Set计数。
kvclient_manager.cpp：在类KVClientManager的Get和Set方法里改变bvar变量的值。
How it Works: 任务加入到线程池，对bvar变量进行+1操作，任务结束，bvar变量及时-1。
Side effects(Breaking backward compatibility? Performance regression?): 无
Check List