Openssl的堆內存使用情況

Question

我在C中使用Openssl庫實現了一個簡單的HTTPS服務器。單個連接的堆使用情況似乎非常巨大。以下是可能需要大的堆空間某些對象：

• char readbuffer[8192]
• SSL_CTX
• SSL

這是正常的嗎？有沒有一種工具可以找出哪個對象需要多少堆？

HEAP SUMMARY: 
==7644==  in use at exit: 78,502 bytes in 2,366 blocks 
==7644== total heap usage: 3,548 allocs, 1,182 frees, 3,139,689 bytes allocated 
==7644== 
==7644== LEAK SUMMARY: 
==7644== definitely lost: 0 bytes in 0 blocks 
==7644== indirectly lost: 0 bytes in 0 blocks 
==7644==  possibly lost: 0 bytes in 0 blocks 
==7644== still reachable: 78,502 bytes in 2,366 blocks 
==7644==   suppressed: 0 bytes in 0 blocks 

Answer 1

試着搞清楚哪個malloc調用是在什麼時候進行的。 Dmalloc可以提供幫助：http://dmalloc.com/

有一次，我還使用了一個簡單的包裝腳本來手動跟蹤內存分配。我認爲是這樣的： http://www.cs.cmu.edu/afs/cs.cmu.edu/academic/class/15213-s03/src/interposition/mymalloc.c