Hi Vladimir, I'm gonna try that today, I'll keep you updated, thanks for the advice!
Le mer. 1 mai 2019 à 11:07, Vladimir Varankin <vladi...@varank.in> a écrit : > Hi Michel, > > Have tried collecting your program's heap profiles [1] (maybe once after > each reload cycle)? Comparing pprof results should show you what objects > leak memory. > > [1]: https://blog.golang.org/profiling-go-programs > > On Tuesday, April 30, 2019 at 3:36:34 PM UTC+2, Michel Levieux wrote: >> >> Hi all, >> >> I'm currently having a lot of trouble debugging the memory usage of the >> program I'm working on. This program, everyday at a given time, reloads a >> bunch of data (that's been updated by another program) into its memory. The >> following function: >> >> // PrintMemUsage outputs the current, total and OS memory being used. As >> well as the number >> // of garage collection cycles completed. >> func PrintMemUsage() { >> var m runtime.MemStats >> runtime.ReadMemStats(&m) >> // For info on each, see: https://golang.org/pkg/runtime/#MemStats >> fmt.Printf("Alloc = %v MiB", bToMb(m.Alloc)) >> fmt.Printf("TotalAlloc = %v MiB", bToMb(m.TotalAlloc)) >> fmt.Printf("Sys = %v MiB", bToMb(m.Sys)) >> fmt.Printf("NumGC = %v\n", m.NumGC) >> } >> >> Outputs this: >> >> Alloc = 103861 MiB >> TotalAlloc = 6634355 MiB >> Sys = 232088 MiB >> NumGC = 3822 >> >> The program reloads its data everyday but everyday the few references >> that existed for the given data is overwritten by the new one. And indeed >> the "Alloc" line above seems to stay around 100GB. Where I don't understand >> what happens is that in the htop line of the program, the memory that is >> used by the program keeps growing as the days pass, and when it reaches >> close to 100% percent of the host's memory, the program will crash >> eventually. >> >> Any idea that would help me debug this memory inconstency between >> memstats and htop is welcome. I can also provide more information but no >> particular piece of code directly from the project. >> >> Thank you all in advance. >> >> -- > You received this message because you are subscribed to the Google Groups > "golang-nuts" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to golang-nuts+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
