In addition, look at allocation. If you can keep the garbage collector constantly busy it'll use the available CPU cores in the machine. It is likely to improve the system by quite a lot.
On Tue, Dec 19, 2017 at 11:36 AM Gulácsi Tamás <tgulacs...@gmail.com> wrote: > You don't need to use bufio, but you'll need buffering to decrement the > count of Read calls (thus, syscalls). > Reusing []byte slices: use a sync.Pool. Or several sync.Pools for > different byte slices. > > Vasiliy Tolstov <v.tols...@selfip.ru> ezt írta (időpont: 2017. dec. 19., > K, 11:30): > >> If I have something like this, but I know that client sends fixed sized >> message header 48 byte and variable sized body based on data in header, and >> want to minimize allocations. Does I need to use bufio? >> Now I'm use goleveldb util package for reusable byte slice. >> >> 19 Дек 2017 г. 11:22 пользователь "Dan Kortschak" < >> dan.kortsc...@adelaide.edu.au> написал: >> >>> bufio.NewReader >>> >>> On Mon, 2017-12-18 at 05:11 -0800, Tamás Gulácsi wrote: >>> > > n, err := sock.Read(buf) >>> > > >>> > > >>> > This will be slow: TCP is a streaming protocol, so this Read can read >>> > any >>> > length between 0 (! yes !) and 1024 bytes. >>> > Use buffering (bytes.NewReader) and some kind of message separation >>> > (e.g. >>> > bufio.Scanner for a line-oriented protocol). >>> >>> -- >>> 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. > -- 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.
