Rename threadPoolMeasurements to OAI_THREADPOOLMEASUREMENTS

- make it clear that it belongs to OAI
- follow convention of uppercase name

common/utils/threadPool/thread-pool.c

@@ -106,7 +106,7 @@ void *one_thread(void *arg) {
 
 void initNamedTpool(char *params,tpool_t *pool, bool performanceMeas, char *name) {
   memset(pool,0,sizeof(*pool));
-  char *measr=getenv("threadPoolMeasurements");
+  char *measr=getenv("OAI_THREADPOOLMEASUREMENTS");
   pool->measurePerf=performanceMeas;
   // force measurement if the output is defined
   pool->measurePerf |= measr!=NULL;

common/utils/threadPool/thread-pool.md

@@ -182,7 +182,7 @@ Returns the total number of jobs that were aborted, i.e., waiting for execution
 
 ## Performance measurements
 
-A performance measurement is integrated: the pool will automacillay fill timestamps if you set the environement variable `threadPoolMeasurements` to a valid file name.  The following measurements will be written to Linux pipe on a per-job basis:
+A performance measurement is integrated: the pool will automacillay fill timestamps if you set the environement variable `OAI_THREADPOOLMEASUREMENTS` to a valid file name.  The following measurements will be written to Linux pipe on a per-job basis:
 
 * `creationTime`: time the request is push to the pool;
 * `startProcessingTime`: time a worker start to run on the job
@@ -193,6 +193,6 @@ The `measurement_display` tool to read the Linux pipe and display it in ASCII is
 In the cmake build directory, type `make/ninja measurement_display`. Use as
 follows:
 ```
-sudo threadPoolMeasurements=tpool.meas ./nr-softmodem ...
+sudo OAI_THREADPOOLMEASUREMENTS=tpool.meas ./nr-softmodem ...
 ./measurement_display tpool.meas
 ```