Summary

Summary of memory used by currently active browsers. For browsers which use multiple processes, memory reflects aggregate memory used across all browser processes. For Chromium, processes used to display diagnostics information (such as this "about:memory") are excluded.

Memory

Memory

Private: Resident memory size that is not shared with any other process. This is the best indicator of browser memory resource usage.

Proportional: Accounts for each page of memory as a fraction based on the number of processes that have it mapped. Thus, for each page of memory mapped by two processes, this sum will count half of the bytes towards each. Therefore, this number is greater than the private count.

(Note that the memory for this tab is not included in the browser totals)

Browser Private Proportional
Chromium
311,180k 82,976k
Firefox
687,776k 30,432k



Processes

Details of memory usage for each of Chromium's processes.

Memory
PID Name Private Proportional
3626
Browser
34,148k 38,464k
3631
Sandbox helper

4,960k 2,452k
3636
Zygote

5,740k 668k
536
Tab (Chrome)
About Memory
9,708k 19,748k
3705
Tab
Black Hat Enterprise Virtualization Manager Web Administration
256,624k 21,644k
Σ 311180k
No results found.
(The memory usage of our renderer processes is slightly less accurate when they are sandboxed.)