Darwin memory usage not good

[pelletierr]

Darwin display of memory usage is not good. I fixed it in my fork

[rk4an]

Hi,

Thanks for your contribution :smiley: I paste the link of your commit below, we need a Mac computer to try it on different version.

https://github.com/pelletierr/phpsysinfo/commit/5b396a8b2885307b71a5331b3f0dab9801c0f29e#diff-d41d8cd98f00b204e9800998ecf8427e

[pelletierr]

If I had a beefier setup @ home, I'd virtualize 10.5 to 10.9 so you could try it. It was trial and error to get the good numbers. What Activity monitor was showing before 10.9 was different also.

[pelletierr]

Oh.. and I'm running my patch here : http://www.menzonet.org/phpSysInfo :)

[namiltd]

Please paste output of commands: vm_stat sysctl hw.memsize

I'll test it tomorrow morning on different versions of the system.

[namiltd]

Unfortunately, version 10.8.5 received the wrong values

[pelletierr]

vm_stat : Mach Virtual Memory Statistics: (page size of 4096 bytes) Pages free: 753222. Pages active: 1870856. Pages inactive: 535981. Pages speculative: 531793. Pages throttled: 0. Pages wired down: 443492. Pages purgeable: 277. "Translation faults": 2912088170. Pages copy-on-write: 239224603. Pages zero filled: 962449612. Pages reactivated: 378063. Pages purged: 635699. File-backed pages: 844582. Anonymous pages: 2094048. Pages stored in compressor: 79413. Pages occupied by compressor: 56969. Decompressions: 2126. Compressions: 82387. Pageins: 1961548. Pageouts: 23343. Swapins: 264. Swapouts: 264.

hw.memsize: 17179869184

Note that Activity Monitor doesn't show the same values in 10.8 and 10.9. I changed phpSysInfo to show the 10.9 values, which IMHO makes more sense than what was shown prior to Mavericks, since OS X was doing a lot of file cache but was showing that memory as free.

[namiltd]

Paste values ​​from Activity Monitor and corresponding vm_stat.

[pelletierr]

Mach Virtual Memory Statistics: (page size of 4096 bytes) Pages free: 10618. Pages active: 1894043. Pages inactive: 988141. Pages speculative: 806200. Pages throttled: 0. Pages wired down: 437176. Pages purgeable: 10356. "Translation faults": 2938853787. Pages copy-on-write: 241916814. Pages zero filled: 971743078. Pages reactivated: 379509. Pages purged: 637333. File-backed pages: 1552166. Anonymous pages: 2136218. Pages stored in compressor: 77894. Pages occupied by compressor: 56429. Decompressions: 3639. Compressions: 82391. Pageins: 1973731. Pageouts: 23343. Swapins: 264. Swapouts: 264.

[namiltd]

Try now.

[pelletierr]

It doesn't make sense...

[namiltd]

Mio <-> Gio

10.01+5,75 = 15.75 15.99-15.75=0,24 = only 240 Mio unknown memory

Look at: http://www.badrit.com/blog/2014/5/1/how-to-calc-memory-usage-in-mavericks-programmatically

[pelletierr]

Anonymous pages doesn't work to list app memory. My server's runing 7.5GiO/8GiO app memory all the time.

[namiltd]

appMemory means "Kernel + applications" (Pages wired down + Anonymous pages)

[pelletierr]

It is now what Activity Monitor shows though.

[namiltd]

If ok close issue (also check your second issue).

[pelletierr]

sorry, said "now" but wanted to say "not"

[pelletierr]

I guess best option would be to define new mem variables to show wired and compressed. I started looking into it.

[namiltd]

Test now (Pages occupied by compressor as buffers).

[pelletierr]

You should'nt set buffer to 0 if there's nothing, that way the line won't be drawn