Hi Pavel, I want to say this should be included in the ‘used’ memory for a process, but perhaps that is not correct.
Raymond. On Mon, 10 Jul 2023 at 5:07 PM, Pavel Tupitsyn <ptupit...@apache.org> wrote: > Hi Raymond, > > "allocated=94407MB" reported by Ignite is "committed" memory - requested > from the OS, but not entirely used/touched. > > > See > - > https://github.com/apache/ignite/blob/df685afb08e3c2297adb8fc6df435a7310e95e50/modules/core/src/main/java/org/apache/ignite/internal/IgniteKernal.java#L2369 > - > https://serverfault.com/questions/1008584/committed-allocated-memory-in-linux-is-less-than-used-memory-how-is-that-possib > - > https://unix.stackexchange.com/questions/137773/is-inactive-memory-related-to-the-commited-but-unused > > On Sat, Jul 8, 2023 at 11:44 AM Raymond Wilson <raymond_wil...@trimble.com> > wrote: > >> Hi, >> >> We have an Ignite node reporting off-heap data region allocation like >> this in the logs: >> >> ^-- Off-heap memory [used=37077MB, free=60.81%, allocated=94407MB] >> >> The same process (.Net 7 running in a Kubernetes pod with 124Gb allocated >> out of 128Gb available on the node), reports this level of managed memory >> usage: >> >> Heartbeat: Total managed memory use: 43836.083Mb >> >> Clearly ~94Gb + ~44Gb (138Gb) is a lot more than both 128Gb and 124Gb >> >> The node in question has the initial and maximum allocation for the data >> region as 94208Mb (plus the system data region etc), so I expect the Ignite >> node to have allocated that much (which is indicated by the 94407Mb >> allocated figure noted in the log line. >> >> However, the .Net CLR is reporting nearly 48Gb of managed RAM usage in >> .Net, so something does not add up. Either .Net is lying about how much it >> is using, or Ignite is lying about how much RAM it actually allocated. >> >> I feel I am missing something here! >> >> Thanks, >> Raymond. >> >> -- >> <http://www.trimble.com/> >> Raymond Wilson >> Trimble Distinguished Engineer, Civil Construction Software (CCS) >> 11 Birmingham Drive | >> <https://www.google.com/maps/search/11+Birmingham+Drive%C2%A0%7C%C2%A0+Christchurch,+New+Zealand?entry=gmail&source=g>Christchurch, >> New Zealand >> <https://www.google.com/maps/search/11+Birmingham+Drive%C2%A0%7C%C2%A0+Christchurch,+New+Zealand?entry=gmail&source=g> >> raymond_wil...@trimble.com >> >> >> <https://worksos.trimble.com/?utm_source=Trimble&utm_medium=emailsign&utm_campaign=Launch> >> > -- <http://www.trimble.com/> Raymond Wilson Trimble Distinguished Engineer, Civil Construction Software (CCS) 11 Birmingham Drive | Christchurch, New Zealand raymond_wil...@trimble.com <https://worksos.trimble.com/?utm_source=Trimble&utm_medium=emailsign&utm_campaign=Launch>
