MaxMemoryUsed
gives the maximum number of bytes used to store all data for the current Wolfram System session.
MaxMemoryUsed[expr]
gives the maximum number of bytes used during the evaluation of expr.
Details
- On most computer systems, MaxMemoryUsed[] will give results close to those obtained from external process status requests.
- MaxMemoryUsed[] will not typically account for code space, stack space, or the effects of heap fragmentation.
Examples
open all close allBasic Examples (2)
Show the maximum memory used during a session:
MaxMemoryUsed[]See how much the maximum memory used increased for a computation:
mmu = MaxMemoryUsed[];NDSolve[{D[u[t, x], t, t] == D[u[t, x], x, x] + Sin[u[t, x]], u[0, x] == Exp[-x ^ 2], (D[u[t, x], t] /. t -> 0) == 0, u[t, -10] == u[t, 10]}, u, {t, 0, 10}, {x, -10, 10}]MaxMemoryUsed[] - mmuScope (1)
View the memory in current use and the maximum memory used thus far in the session:
{MaxMemoryUsed[], MemoryInUse[]}View the additional memory used during a computation:
MaxMemoryUsed[Range[10 ^ 7]]For this trivial computation, the memory used is just slightly above the size of the result:
Range[10 ^ 7]//ByteCountThe maximum memory used by the session increased to the memory in use plus the maximum memory used by the computation:
{MaxMemoryUsed[], MemoryInUse[]}Text
Wolfram Research (1988), MaxMemoryUsed, Wolfram Language function, https://reference.wolfram.com/language/ref/MaxMemoryUsed.html.
CMS
Wolfram Language. 1988. "MaxMemoryUsed." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/MaxMemoryUsed.html.
APA
Wolfram Language. (1988). MaxMemoryUsed. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/MaxMemoryUsed.html