Date: Fri, 13 Jan 2017 09:58:01 +0100 (CET) From: "Jakob Alvermark" <jakob@alvermark.net> To: "John Baldwin" <jhb@freebsd.org> Cc: freebsd-current@freebsd.org, "Shawn Webb" <shawn.webb@hardenedbsd.org>, "Jakob Alvermark" <jakob@alvermark.net> Subject: Re: r311568 makes freerdp very slow Message-ID: <54232.193.12.143.142.1484297881.squirrel@webmail.alvermark.net> In-Reply-To: <1610370.k87iRho0oa@ralph.baldwin.cx> References: <57236.193.12.143.142.1484240708.squirrel@webmail.alvermark.net> <20170112174211.5nmvpjatg6zap35a@mutt-hardenedbsd> <1610370.k87iRho0oa@ralph.baldwin.cx>
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On Thu, January 12, 2017 19:26, John Baldwin wrote: > On Thursday, January 12, 2017 12:42:11 PM Shawn Webb wrote: > >> On Thu, Jan 12, 2017 at 06:05:08PM +0100, Jakob Alvermark wrote: >> >>> Hi, >>> >>> >>> r311568 Set MORETOCOME for AIO write requests on a socket. >>> >>> After this commit freerdp is very slow. >>> >>> >>> Before the password prompt would appear immediately when connecting >>> to a server. Now it takes 5-10 seconds. After entering the password, >>> another 5-10 seconds until I am connected. >>> Once connected, there is a considerable lag. >>> >>> >>> What could be the problem? >>> >> >> I don't know what the problem is, but I am seeing the same symptom. >> > > Can you get a ktrace of the freerdp process during this? The commit > should only be setting MORETOCOME if multiple aio_write requests are queued > to the same socket (so that TCP can batch them into a single packet). > However, it should not affect an application just calling > aio_write() on a socket once. > > -- > John Baldwin Hi John, I got the ktrace, what do I do with it? Thanks, Jakob
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