Merge pull request #1207 from taosdata/feature/lihui

[modify default for aarch32]

README.md

@@ -45,13 +45,15 @@ mkdir build && cd build
 cmake .. && cmake --build .
 ```
 
-if compiling on an ARM processor(aarch64 or aarch32), you need add one parameter:
+To compile on an ARM processor (aarch64 or aarch32), please add option CPUTYPE as below:
 
-```cmd
 aarch64:
+```cmd
 cmake .. -DCPUTYPE=aarch64 && cmake --build .
+```
 
 aarch32:
+```cmd
 cmake .. -DCPUTYPE=aarch32 && cmake --build .
 ```
 

src/util/src/tglobalcfg.c

@@ -80,7 +80,12 @@ short tsNumOfVnodesPerCore = 8;
 short tsNumOfTotalVnodes = 0;
 short tsCheckHeaderFile = 0;
 
+#ifdef _TD_ARM_32_
+int tsSessionsPerVnode = 100;
+#else
 int tsSessionsPerVnode = 1000;
+#endif
+
 int tsCacheBlockSize = 16384;  // 256 columns
 int tsAverageCacheBlocks = TSDB_DEFAULT_AVG_BLOCKS;
 /**