Revision 0:bfe7b0aefe02, committed 2013-07-08

Comitter:

tass

Date:

Mon Jul 08 12:25:13 2013 +0000

Child:

1:fd8283c28901

Commit message:

lwIP memory usage benchmark.

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/EthernetInterface.lib	Mon Jul 08 12:25:13 2013 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/emilmont/code/EthernetInterface/#dd9794ce1d64

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Jul 08 12:25:13 2013 +0000
@@ -0,0 +1,166 @@
+#include <mbed.h>
+#include <stdarg.h>
+#include "EthernetInterface.h"
+
+#define ECHO_SERVER_PORT  7
+#define BUFFER_QUANTITY   (1024*1024)
+
+struct MemoryUsage
+{
+    uint32_t minFreeRam;
+    uint32_t maxFreeRam;
+    uint32_t avgFreeRam;
+    uint32_t stackPointer;
+    uint32_t cntSamples;
+};
+
+struct MemoryUsage memoryStats = {0xFFFFFFFF,0,0,0};
+
+int fakePrintf(void* pvHeapInfo, char const* pFormatString, ...)
+{
+    struct MemoryUsage * memStat = (struct MemoryUsage *)pvHeapInfo;
+    static const char* freeRamFormat = "%d bytes in";
+    va_list valist;
+    
+    if(memcmp(pFormatString,freeRamFormat,strlen(freeRamFormat)) == 0)
+    {
+        va_start(valist, pFormatString);
+        unsigned long freeSize = va_arg(valist, unsigned long);
+        
+        if(memStat->minFreeRam > freeSize)
+            memStat->minFreeRam = freeSize;
+        
+        if(memStat->maxFreeRam < freeSize)
+            memStat->maxFreeRam = freeSize;
+            
+        memStat->avgFreeRam = ((memStat->avgFreeRam * memStat->cntSamples) + freeSize)/(++memStat->cntSamples);
+    }
+    else
+    {
+        // ignore format
+    }
+    return 0;
+}
+
+void inline memoryStamp(void)
+{
+    __heapstats((__heapprt)fakePrintf, &memoryStats);
+}
+
+void inline stackPtrSnapshot(void)
+{
+    memoryStats.stackPointer = __current_sp();
+}
+
+int main() {
+    
+    printf("Ethernet Interface memory test....\n");
+    stackPtrSnapshot(); // snapshot of the stack pointer before starting benchmark to see the SP.
+    EthernetInterface eth;
+    int connections = 0;
+    eth.init(); //Use DHCP
+    eth.connect();
+    printf("IP Address %s\n", eth.getIPAddress());
+    
+    TCPSocketServer server;
+    server.bind(ECHO_SERVER_PORT);
+    server.listen();
+    
+    while (true) {
+    printf("\nWait for new connection...\n");
+    printf("Client number %d\n",++connections);
+    TCPSocketConnection client;
+    server.accept(client);
+    client.set_blocking(false, 1500); // Timeout after (1.5)s
+    printf("Connection from: %s\n", client.get_address());
+    char buffer[1024];
+    while (true) {
+        
+        int dataReceived = 0;
+        int dataSent = 0;
+        
+        printf("\n\n\nStarting the receiving part...\n");
+        while(dataReceived < BUFFER_QUANTITY)
+        {
+            int n = client.receive(buffer, sizeof(buffer));
+            if (n <= 0) {
+                printf("Receive error\n");
+                break;
+            }
+            dataReceived += n;
+            memoryStamp();
+        }
+        
+       
+        printf("Received : %d bytes\nExpected : %d bytes\n",dataReceived,BUFFER_QUANTITY);
+        if(dataReceived < BUFFER_QUANTITY)
+        {
+            printf("Receiving part of the test has failed. Exiting connection.\n");
+            break;
+        }
+        else{
+            printf("Receiving has passed...\n");
+        }
+        
+        printf("\n\n\nStarting the sending part...\n");
+        while(dataSent < BUFFER_QUANTITY)
+        {
+            int n = client.send_all(buffer, sizeof(buffer));
+            if (n <= 0) {
+                printf("Send error\n");
+                break;
+            }
+            dataSent += n;
+            memoryStamp();
+        }
+        
+        printf("Sent : %d bytes\nExpected : %d bytes\n",dataSent,BUFFER_QUANTITY);
+        if(dataSent < BUFFER_QUANTITY)
+        {
+            printf("Sending part of the test has failed. Exiting connection.\n");
+            break;
+        }
+        else
+        {
+            printf("Sending test has passed...\n");
+        }
+        
+        
+        printf("\n\n\nStarting echo part...\n");
+        dataReceived = dataSent = 0;
+        while((dataReceived+dataSent) < 2*BUFFER_QUANTITY)
+        {
+            int n = client.receive(buffer, sizeof(buffer));
+            if (n <= 0) {
+                printf("Receive error\n");
+                break;
+            }
+            dataReceived += n;
+            
+            n = client.send_all(buffer, n);
+            if (n <= 0) {
+                printf("Send error\n");
+                break;
+            }
+            dataSent += n;
+            memoryStamp();
+        }
+        
+        printf("Echo size : %d bytes\nExpected : %d bytes\n",(dataReceived+dataSent),2*BUFFER_QUANTITY);
+        if((dataReceived+dataSent) < 2*BUFFER_QUANTITY)
+        {
+            printf("Echo test has failed.Exiting connection...\n");
+            break;
+        }
+        else
+        {
+            printf("Echo test has passed...\n");
+        }
+     }
+    client.close();
+    printf("Memory report after connection....\n");
+    printf("Max memory : %d bytes\nMin memory : %d bytes\nAverage memory : %d\n",memoryStats.maxFreeRam,memoryStats.minFreeRam,memoryStats.avgFreeRam);
+  }
+  
+  return 0;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos.lib	Mon Jul 08 12:25:13 2013 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed-rtos/#58b30ac3f00e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Mon Jul 08 12:25:13 2013 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/b3110cd2dd17
\ No newline at end of file