[branch-1.1-lts](cherry-pick) Some fixes for mem tracker #12889
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…lloc allocator cache (apache#12688) tcmalloc/jemalloc allocator cache does not participate in the mem check as part of the process physical memory. because new/malloc will trigger mem hook when using tcmalloc/jemalloc allocator cache, but it may not actually alloc physical memory, which is not expected in mem hook fail. in addition: The value of tcmalloc/jemalloc allocator cache is used as a mem tracker, the parent is the process mem tracker, which is updated every 1s. Modify the process default mem_limit to 90%. expect mem tracker to effectively limit the memory usage of the process.
After the consume mem tracker exceeds the mem limit in the mem hook, the boost stacktrace will be printed. A query/load will only be printed once, and the process tracker will only be printed once per second. After the process memory reaches the upper limit, the boost stacktrace will be printed every second. The observed phenomena are as follows: After query/load is canceled, the memory increases instantly; tcmalloc profile total physical memory is less than perf process memory; The process mem tracker is smaller than the perf process memory;
This bug is because the result of subtracting signed and unsigned numbers may overflow if it is negative.
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Proposed changes
Issue Number: close #xxx
Problem summary
cherry-pick:
#12666
#12339
#12682
#12688
#12708
#12782
#12776
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