Been noticing the same thing on my F30 system as well....I don't think its Fedora....I think its Mozilla's Firefox, this behavior also has hit my OpenSuSE and my CEntOS laptops....something is eating up the RAM on them when Firefox is running...and it seems to go back to being snappy and fast once I close and then reopen FF, but after a few minutes?.....it slows down again.



EGO II

On 10/6/19 6:59 AM, George N. White III wrote:
On Sun, 6 Oct 2019 at 05:49, Cătălin George Feștilă <mythcat@fedoraproject.org> wrote:

my Fedora 30 distro has a strange behavior: it slows down and then recovers to a good speed...

The hardware :
[mythcat@desk ~]$ lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor DRAM Controller (rev 09)
00:02.0 Display controller: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b5)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5)
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a5)
00:1f.0 ISA bridge: Intel Corporation Z68 Express Chipset LPC Controller (rev 05)
00:1f.2 RAID bus controller: Intel Corporation SATA Controller [RAID mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
03:00.0 PCI bridge: Integrated Technology Express, Inc. IT8892E PCIe to PCI Bridge (rev 30)
05:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce 210] (rev a2)
05:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1)

The RAM memory
[mythcat@desk ~]$ free -mh
              total        used        free      shared  buff/cache   available
Mem:          1.6Gi       1.1Gi       277Mi       140Mi       280Mi       242Mi
Swap:         3.5Gi       962Mi       2.5Gi

This is a screenshot with htop command running firefox:
https://pasteboard.co/IAGQJ3o.png

 Looks like the system has 2G RAM, which is marginal these days.   Swapping to a mechical
disk  would be really slow if the disk is failing.

--
George N. White III


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